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Payment card

A payment card is a plastic or metal card issued by financial institutions that enables users to make electronic payments for goods and services without using physical cash, typically through point-of-sale terminals, online platforms, or ATMs.^[1] Common types include credit cards, which allow cardholders to borrow money up to a predefined limit from the issuer; debit cards, which deduct funds directly from a linked bank account; charge cards, which require the full balance to be paid each billing cycle without a preset spending limit; and prepaid cards, which are loaded with a fixed amount of money in advance and function like debit cards but without tying to a bank account.^[2]^[3]^[4]^[5] The origins of payment cards trace back to the mid-20th century, with the development of bank-issued credit cards in the 1950s, when nearly 100 U.S. banks began offering them to facilitate consumer spending and reduce reliance on checks.^[6] This innovation evolved in the 1960s with the formation of major networks like Visa (originally BankAmericard) and Mastercard, standardizing acceptance across merchants and expanding global use.^[6] Debit cards emerged in the 1970s alongside electronic authorization systems, such as Base I developed by Bank of America in 1973, enabling real-time transaction verification.^[7] By the 1980s and 1990s, magnetic stripes became standard for encoding card data, paving the way for widespread electronic point-of-sale systems.^[8] Modern payment cards incorporate advanced security features to combat fraud, including EMV chip technology introduced in the late 1990s, which generates dynamic codes for each transaction to replace static magnetic stripe data and has been adopted in nearly 14 billion cards worldwide as of 2024.^[9] Additionally, the Payment Card Industry Data Security Standard (PCI DSS), established in 2006 by major card brands including Visa, Mastercard, American Express, Discover, and JCB, mandates requirements for protecting cardholder data during processing, storage, and transmission.^[10] These measures, combined with contactless payment options and tokenization, have significantly reduced counterfeit fraud while supporting the shift toward digital and mobile transactions.^[11]

Introduction and History

Definition and Overview

A payment card is a plastic card issued by a financial institution, such as a bank, to an authorized cardholder, enabling access to funds for purchases, cash withdrawals, or payments through interconnected payment networks.^[12] These cards facilitate electronic transactions by linking to the cardholder's account, allowing secure and convenient exchanges of value without the need for physical currency.^[13] Key components of a payment card include the cardholder's name, the primary account number (PAN)—a unique 13- to 19-digit identifier—the expiration date, the card verification value (CVV) for added security, and the issuer's logo, which denotes the issuing bank or institution.^[14] These elements ensure proper authentication and routing during transactions, with the PAN serving as the core identifier for processing.^[15] In the broader payment ecosystem, payment cards integrate seamlessly with point-of-sale (POS) terminals for retail purchases, automated teller machines (ATMs) for cash access and balance inquiries, and online payment gateways for digital commerce, forming a critical link between consumers, merchants, and financial networks.^[16] This infrastructure supports real-time authorization, settlement, and fraud prevention across global systems.^[17] As of 2025, over 27 billion payment cards are in circulation worldwide, reflecting widespread adoption driven by economic growth and digital infrastructure expansion.^[18] Payment cards have evolved from purely physical forms to hybrid digital-physical variants incorporating near-field communication (NFC) technology, with a notable surge in contactless adoption between 2024 and 2025; for instance, nearly 85% of retail transactions in Europe now occur via contactless methods.^[19]

Historical Development

The precursors to modern payment cards emerged in the early 20th century, when department stores and hotels began issuing metal charge coins and plates to trusted customers for deferred payments. These small, engraved metal tokens, often the size of a quarter, bore the customer's account number and allowed purchases on credit within specific establishments, marking an initial shift from cash-only transactions.^[20] Following World War II, the first general-purpose charge card was introduced by Diners Club in 1950, enabling payments at multiple restaurants and merchants without carrying cash, after founder Frank McNamara famously forgot his wallet during a dinner in New York. This innovation expanded rapidly, with membership growing to 20,000 by the end of its first year and acceptance at over 200 venues. In 1958, American Express launched its own charge card, leveraging its existing traveler's cheque network to target affluent travelers, requiring full monthly payment but offering global usability at hotels, airlines, and retailers.^[21]^[22] The credit card industry boomed in the late 1960s as banks entered the market to compete with independent issuers. Bank of America introduced BankAmericard in 1958, initially piloted in Fresno, California, as the first revolving credit card from a bank, allowing users to carry balances with interest; it expanded nationally and internationally, eventually rebranding as Visa in 1976. That same year, a consortium of banks formed the Interbank Card Association, launching Master Charge in 1969 as a rival network, which was renamed Mastercard in 1979 and grew to rival Visa through widespread merchant adoption.^[6]^[23] Debit cards appeared shortly after, with the first issued in 1966 by the Bank of Delaware in the United States, directly linking transactions to checking accounts for immediate fund deductions without credit extension.^[24] In the UK, debit functionality gained traction through cheque guarantee cards introduced in 1966, but widespread adoption occurred in the 1980s alongside electronic funds transfer at point of sale (EFTPOS) systems, which originated in Australia in 1984 and spread globally to enable real-time debit processing at retail terminals.^[24] Technological advancements transformed payment cards in the following decades, beginning with the widespread adoption of magnetic stripes in the 1970s. Developed by IBM and standardized in 1971, the magstripe encoded card data for machine-readable swiping, reducing manual verification and enabling automated authorization; by the mid-1970s, major issuers like Visa and Mastercard had integrated it into their cards, boosting transaction speeds and volumes. The 1990s saw the rollout of EMV chip technology in Europe, spearheaded by Europay, Mastercard, and Visa to combat fraud through dynamic encryption; initial specifications were published in 1996, with France and the UK achieving high adoption rates by the early 2000s, and global migration accelerating in the 2010s via liability shifts that incentivized issuers and merchants to upgrade.^[25]^[26] In the 2010s, contactless near-field communication (NFC) emerged as a key innovation, with Visa launching payWave in 2011 to allow tap-to-pay transactions under $100 without PIN entry in select markets, enhancing speed and convenience amid rising smartphone integration. By 2024-2025, payment cards have increasingly incorporated biometric features like fingerprint and facial recognition on physical cards for added security, while tokenization—replacing card numbers with unique digital tokens—has become standard to prevent data breaches, particularly as cards link to digital wallets such as Apple Pay, which by 2025 accounts for a significant share of mobile transactions through seamless NFC provisioning. These developments reflect a broader shift toward hybrid physical-digital ecosystems, with global contactless adoption surpassing 80% in mature markets.^[27]^[28]^[29]

Types of Payment Cards

Credit Cards

A credit card is a type of payment card that provides revolving credit, allowing cardholders to make purchases up to an approved limit without immediate payment from their bank account, with the balance deferred and subject to interest if not paid in full by the due date.^[30] This mechanism enables repeated borrowing and repayment within the credit limit, distinguishing it from non-revolving credit like installment loans.^[31] Interest accrues on unpaid balances at the annual percentage rate (APR), typically calculated using the average daily balance method, where the daily periodic rate (APR divided by 365) is multiplied by the average balance over the billing cycle.^[32] The issuance process begins with an application submitted to a financial institution, where the issuer evaluates the applicant's creditworthiness through a credit check, reviewing factors such as payment history, income, debt-to-income ratio, and credit score.^[33] Upon approval, the issuer sets a credit limit based on these assessments, often starting lower for new or lower-score applicants and adjustable over time with responsible use.^[34] Key features include a grace period of 21 to 25 days from the statement closing date to the payment due date, during which no interest is charged on new purchases if the full balance is paid; minimum payments, typically 1-2% of the balance plus interest and fees or a fixed amount like $25-35, to avoid penalties; and rewards programs offering cashback, points, or miles on purchases to incentivize usage.^[35]^[36]^[37] The billing cycle, usually 28-31 days, ends with statement generation detailing transactions, balance, minimum due, and payment due date, after which the grace period applies.^[38] In 2025, the average credit card APR stands at approximately 21.37% for the first quarter, reflecting ongoing economic pressures.^[39] Globally, credit card prevalence varies significantly, with about 82% of U.S. adults owning at least one card, far higher than the under-50% penetration in most countries, such as 42% in China; regulations like the U.S. Credit CARD Act of 2009 have enhanced transparency by limiting retroactive rate increases, capping upfront fees, and mandating clear disclosures.^[40]^[41] In 2025, credit cards are increasingly integrating buy now, pay later (BNPL) options, with issuers like Chase and Citi embedding installment plans directly into card accounts for seamless deferred payments on select purchases.^[42] Additionally, AI-driven tools are enabling personalized credit limits through advanced scoring models that analyze real-time behavioral data, spending patterns, and risk profiles to dynamically adjust limits and promote financial inclusion.^[43]^[44]

Debit Cards

A debit card is a payment card that enables consumers to access funds directly from their linked checking or savings account, authorizing transactions without extending credit or incurring debt.^[45] Unlike credit cards, debit card purchases result in immediate deductions from the account balance, typically processed through electronic fund transfer networks.^[46] Debit cards are categorized into two primary types based on authorization and processing methods: online debit, also known as PIN debit, and offline debit, or signature debit. Online debit transactions require the cardholder to enter a personal identification number (PIN) for authentication, routing the payment through a debit network for real-time verification and immediate fund transfer from the account.^[47] In contrast, offline debit transactions function similarly to credit cards, relying on a signature for approval without a PIN, and do not guarantee instant deduction, as settlement may occur later.^[48] PIN-based online debit offers higher security due to the required code and is often preferred for point-of-sale purchases, while signature debit provides convenience for smaller or unattended transactions.^[49] In usage, debit cards commonly involve PIN authorization for secure access, with many issuers imposing daily spending or withdrawal limits—often ranging from $500 to $5,000—to mitigate fraud risk and manage account balances.^[50] Overdraft protection services may cover transactions exceeding available funds, but they typically trigger fees averaging $18.66 per incident as of September 2025, though some banks have reduced or eliminated these charges amid regulatory pressure.^[51]^[52] Networks like Visa Debit facilitate real-time processing, ensuring funds are debited almost instantaneously during authorization.^[53] Adoption of debit cards remains strong in the United States, where non-prepaid debit cards accounted for 58% of all card payments in 2023, reflecting their role as a primary non-cash payment method.^[54] According to the Federal Reserve's 2024 Diary of Consumer Payment Choice, debit cards represented 30% of total consumer payments by number in 2024, underscoring their widespread use amid rising transaction volumes.^[55] However, by 2025, emerging pay-by-bank alternatives—such as account-to-account transfers—are gaining traction, potentially reducing reliance on physical debit cards by enabling direct, real-time bank linkages for payments.^[56] Regulatory protections for debit card users in the US are governed by Regulation E under the Electronic Fund Transfer Act, which limits consumer liability for unauthorized transactions to $50 if reported promptly, or up to $500 if delayed beyond two business days.^[50] This framework also mandates disclosures for overdraft services and prohibits fees for ATM or one-time debit overdrafts without opt-in consent.^[57] While FDIC insurance covers deposit accounts up to $250,000 against bank failure, it does not directly apply to individual transaction disputes, which fall under Regulation E.^[58] Internationally, debit cards are extensively used in Europe through the Single Euro Payments Area (SEPA), which standardizes cashless euro transactions across 36 countries, including card-based payments that comprised 54% of non-cash payments in 2022.^[59] SEPA's integration of credit transfers, direct debits, and cards has facilitated seamless debit usage for everyday purchases. In contrast, markets like India remain cash-heavy, with cash accounting for nearly half of transactions in 2025 despite digital growth; debit cards have been sidelined by the Unified Payments Interface (UPI), now primarily used for ATM withdrawals rather than point-of-sale spending.^[60]^[61]

Charge and Stored-Value Cards

Charge cards differ from traditional credit cards by requiring cardholders to pay the full outstanding balance each month, preventing the accumulation of revolving debt.^[62] This pay-in-full structure encourages disciplined spending while avoiding interest charges on carried balances.^[62] A prominent example is the American Express Green Card, which encourages full monthly payment to avoid interest but allows carrying a balance with the Pay Over Time feature.^[63] Unlike credit cards with fixed limits, charge cards often lack a preset spending cap, allowing purchases based on the issuer's assessment of the cardholder's payment history, income, and credit profile.^[62] This flexibility appeals particularly to business users and affluent individuals who require higher spending capacity for travel, expenses, or procurement without rigid thresholds.^[64] However, issuers enforce strict repayment policies, imposing significant late payment fees—up to $40 for American Express personal charge cards—to deter delays.^[65] Stored-value cards, also known as prepaid cards, function by holding a predetermined amount of funds loaded onto the card prior to use, serving as a non-revolving alternative to credit or debit options.^[66] Common examples include gift cards for retail purchases and payroll cards distributed by employers for wage disbursement.^[67] These cards come in two main variants: non-reloadable, which carry a fixed balance that depletes with use and cannot be replenished, and reloadable, allowing users to add funds repeatedly for ongoing access.^[68] Mechanically, stored-value cards do not require a credit check for issuance, making them accessible to individuals without established credit histories or bank accounts.^[69] The available balance is tracked and stored directly on the card via embedded technologies such as a microchip for secure, encrypted data or a magnetic stripe for simpler encoding and reading during transactions.^[66] This on-card storage enables immediate verification of funds at point-of-sale terminals without linking to external accounts.^[70] The global market for stored-value cards is projected at approximately $4.3 billion in 2025.^[71] In the United States alone, the prepaid card and digital wallet segment is projected to hit $749.46 billion by year-end, underscoring the scale of this payment method.^[72] Regulatory frameworks govern stored-value cards to protect consumers, with the Consumer Financial Protection Bureau (CFPB) providing oversight through rules under the Electronic Fund Transfer Act, including requirements for clear fee disclosures, error resolution, and liability limits.^[73] Additionally, escheatment laws mandate that unclaimed balances on dormant cards—typically after 1 to 5 years of inactivity, varying by jurisdiction—be transferred to state unclaimed property funds for potential reclamation by owners.^[74] Recent trends from 2024 to 2025 highlight the integration of digital features with stored-value cards, such as linking to mobile wallets and apps, which has expanded access for underbanked populations by enabling easier loading, tracking, and usage without traditional banking infrastructure.^[28] This shift supports financial inclusion, with digital-enabled prepaid options growing rapidly among underserved users globally.^[75]

Specialized Cards

Specialized payment cards are designed for targeted applications, offering restricted functionality to meet specific industry or user needs, such as cash access, fleet management, healthcare expenses, or transit payments. These cards often operate on limited networks and incorporate features like expense tracking to enhance control and compliance, distinguishing them from general-purpose credit or debit cards.^[76] ATM cards, issued by banks primarily for cash withdrawals at automated teller machines, typically require a personal identification number (PIN) for authentication and are often integrated with debit card capabilities for broader account access. Unlike signature-based debit cards, ATM cards emphasize PIN-only transactions to ensure secure, direct deductions from checking or savings accounts. Usage of ATM cards has been declining amid the rise of mobile banking, with ATM transactions in Ireland falling 11% in the second quarter of 2025 compared to the prior year, as consumers increasingly opt for app-based transfers and digital wallets.^[77]^[78]^[79] Fleet cards cater to commercial vehicle operations, enabling payments for fueling, maintenance, and related services while providing controls such as mileage tracking, odometer readings, and detailed expense reporting to optimize costs and prevent misuse. Providers like WEX and Fuelman offer these cards with integration to telematics systems for real-time vehicle monitoring and fraud alerts, often on restricted networks limited to approved vendors. The U.S. fuel card market, encompassing fleet applications, reached $88.03 billion in 2024 and is projected to reach approximately $96.3 billion in 2025, driven by a compound annual growth rate of 9.40% through 2030.^[80]^[81]^[82]^[83] Health savings cards, linked to Flexible Spending Accounts (FSAs) or Health Savings Accounts (HSAs), allow pre-tax payments for qualified medical expenses, functioning like debit cards tied to employer-sponsored or individual funds. These cards must comply with regulations such as the Health Insurance Portability and Accountability Act (HIPAA), which applies if the account qualifies as a covered entity under employee welfare benefit plans, requiring safeguards for protected health information during transactions.^[84]^[85] Transit cards, such as London's Oyster card, serve as smartcards for pay-as-you-go fares on public transport systems, pre-loaded with credit for seamless contactless use on buses, trains, and trams within a defined network. Some loyalty cards incorporate payment functions, allowing users to accumulate rewards while funding small transactions, though these are typically confined to specific retail or service ecosystems for enhanced user retention.^[86]^[87]

Card Networks and Issuers

Major Card Networks

The major payment card networks serve as the backbone for processing transactions worldwide, enabling the flow of funds between cardholders, issuers, merchants, and acquirers. These networks include Visa, Mastercard, American Express, Discover, UnionPay, and regional players like JCB, each with distinct operational scopes and market positions. Visa leads globally with approximately 4.5 billion cards in circulation and a market share of around 52% by purchase volume as of 2025. Mastercard follows with about 3.3 billion cards and roughly 25% market share. American Express operates a proprietary network with around 141 million cards, focusing on premium offerings.^[88] Discover maintains a smaller footprint with 71.5 million cards, primarily in the U.S. UnionPay dominates in China with over 9.4 billion cards, holding about 56% of global card circulation share and significant influence in Asia. These networks primarily utilize a four-party model, involving the cardholder, issuing bank (which provides the card), merchant (who accepts payments), and acquiring bank (which processes merchant transactions). In this structure, the network routes authorization requests from the merchant's point-of-sale terminal to the issuer for approval, ensuring funds availability before completing the sale. Interchange fees, typically ranging from 1.1% to 3.15% of the transaction value, are charged by the issuer to the acquirer and passed through the network to compensate for processing costs and risk. Operationally, card networks handle authorization routing in real-time, verifying transaction details against issuer parameters within seconds. Settlement occurs on a T+1 basis for many transactions in 2025, where funds are transferred between banks the day after processing, improving liquidity compared to longer cycles. Fraud monitoring is centralized through dedicated hubs employing AI and machine learning to detect anomalies, with networks like Visa and Mastercard reporting reduced fraud rates via advanced analytics. Visa and Mastercard operate in over 200 countries and territories, facilitating acceptance at millions of merchant locations globally. Regional networks like JCB, primarily active in Asia, support transactions in Japan and expanding partnerships across 190 countries, emphasizing local market dominance. In 2025, networks are piloting blockchain for cross-border settlements to enhance speed and reduce costs, with initiatives integrating distributed ledger technology for secure, transparent transfers. Additionally, real-time payments (RTP) integration is accelerating, allowing instant card-linked disbursements and bridging traditional cards with faster payment rails like Visa's RTP network. On November 10, 2025, Visa and Mastercard reached a revised settlement agreement with merchants in a long-standing swipe fee lawsuit, agreeing to reduce interchange fees by 0.1 percentage points over five years and implement caps on certain rates, pending court approval; this could lower processing costs for merchants and influence future fee structures in the four-party model.^[89]

Issuing Financial Institutions

Issuing financial institutions, also known as card issuers, are banks, credit unions, and fintech companies authorized to provide payment cards to consumers and businesses. These entities extend credit lines or link cards to deposit accounts, enabling transactions through major networks like Visa and Mastercard. Prominent examples include traditional banks such as JPMorgan Chase, Bank of America, Citibank, and HSBC, which dominate issuance in the U.S. and globally; credit unions like Navy Federal Credit Union; and fintechs such as Chime, which partners with Visa for debit card issuance without traditional banking charters.^[90]^[91]^[92] The card issuance process begins with underwriting, where issuers evaluate applicants' credit history, income, and financial stability to approve credit limits or debit linkages, often using credit bureau data and scoring models. Upon approval, a Bank Identification Number (BIN)—the first six to eight digits of the card's Primary Account Number (PAN)—is assigned to route transactions to the correct issuer and identify the card type, network, and issuing institution. This is followed by personalization, which involves encoding the card with the holder's details, chip data, and security features before delivery, either physically or digitally.^[93]^[94]^[95]^[96] Issuers bear primary responsibilities for ongoing card management, including providing customer service for inquiries, disputes, and support; handling billing and statement generation for credit cards; and conducting risk management to monitor transaction patterns and detect anomalies. They must also ensure compliance with Know Your Customer (KYC) and Anti-Money Laundering (AML) regulations, which require verifying customer identities, assessing money laundering risks, and reporting suspicious activities to regulatory authorities.^[97]^[98]^[99]^[100] Many issuers engage in co-branding partnerships with retailers or brands to offer customized cards that provide tailored rewards, enhancing customer loyalty. For instance, the Amazon Rewards Visa card, issued by Chase in partnership with Amazon, offers points on purchases redeemable at the retailer, combining the issuer's financial expertise with the partner's marketing reach. Such collaborations allow issuers to expand market segments while sharing revenue from interchange fees and interest.^[101]^[102]^[103] In 2025, issuance trends emphasize digital-only processes, where virtual cards are provisioned instantly via mobile apps without physical production, streamlining activation for users. Open banking APIs further accelerate onboarding by enabling secure data sharing between issuers and third-party services for real-time identity verification and credit checks, reducing approval times to minutes. These innovations support faster market entry for fintechs and improve accessibility in underserved regions.^[104]^[105]^[106]^[107] In the U.S., the top five issuers—Chase, American Express, Citibank, Capital One (including Discover following its acquisition in September 2025), and Bank of America—control over 50% of the credit card market by purchase volume, reflecting consolidation among major banks.^[108]^[109] Globally, more than 10,000 financial institutions issue payment cards, with the largest ten holding $1.282 trillion in credit card outstandings as of year-end 2024, underscoring the fragmented yet concentrated nature of the industry.^[110]

Physical and Technical Features

Physical Design Elements

Payment cards adhere to standardized physical dimensions defined by the ISO/IEC 7810 ID-1 format, measuring 85.6 mm in length, 53.98 mm in width, and 0.76 mm in thickness, ensuring compatibility with wallets, readers, and automated systems worldwide.^[111] These specifications promote uniformity across credit, debit, and other card types, facilitating global interoperability.^[112] The primary material for payment cards is polyvinyl chloride (PVC), a durable thermoplastic chosen for its flexibility, printability, and resistance to wear, which allows cards to withstand daily handling without delaminating or cracking.^[113] In response to environmental concerns, eco-friendly alternatives have gained traction, including recycled PVC (rPVC) and polyethylene terephthalate glycol (PETG), which maintain similar mechanical properties while incorporating post-consumer waste to lessen environmental impact.^[114] The layout of a payment card is divided into front and back surfaces to balance aesthetics, functionality, and security. On the front, key elements typically include the cardholder's name, the primary account number (PAN), expiration date, issuing bank logo, payment network emblem (such as Visa or Mastercard), and a holographic overlay for visual authentication. The back features a signature strip for handwritten verification, the card verification value (CVV) code, customer service contact details, and provisions for the magnetic stripe or contact chip, arranged to optimize scannability and user interaction.^[115] Embossing involves raising the card number, expiration date, and sometimes the cardholder's name on the front surface using heat and pressure, creating tactile characters readable by mechanical imprinters—a practice standardized under ISO/IEC 7811 for legacy transaction methods. Although embossing enhances durability and fraud resistance through its physical prominence, it has become optional in modern cards due to the prevalence of electronic readers and chip-based transactions, reducing production complexity while preserving compatibility.^[116] To deter counterfeiting, payment cards incorporate holographic elements, such as diffractive optically variable image devices (DOVIDs) that shift appearance under light, and ultraviolet (UV) inks that reveal hidden patterns or text only under blacklight, adding layers of verifiable visual security without altering the card's tactile feel.^[117] As of 2025, premium payment cards increasingly feature metal constructions, such as stainless steel or titanium cores overlaid with plastic for compatibility, offering enhanced prestige and longevity for high-value accounts issued by institutions like American Express or Chase.^[118] Sustainable designs have advanced with widespread adoption of recycled PET and bio-based polymers, enabling issuers to reduce the carbon footprint associated with card production through lower virgin material use and improved recyclability.^[119] Emerging physical features include biometric payment cards with integrated fingerprint sensors for on-card authentication, though adoption remains niche due to manufacturing complexities and costs, with global market value projected at $321.9 million in 2025.^[120] Durability is governed by ISO/IEC 10373-1, which mandates tests for bending stiffness, torsion resistance, and warpage under environmental stresses like temperature fluctuations and humidity, ensuring cards endure at least 1,000 flex cycles without functional failure. Additional standards address magnetic resistance, requiring cards to retain data integrity after exposure to common demagnetizing fields from devices like phones or wallets.^[121]

Data Encoding and Storage

The Primary Account Number (PAN) serves as the core identifier on payment cards, structured as a variable-length numeric string ranging from 13 to 19 digits. It comprises three main components: the issuer identification number (IIN), now standardized at up to 8 digits to uniquely identify the issuing institution; the individual account identifier, which specifies the cardholder's account; and a trailing check digit for validation. This structure adheres to ISO/IEC 7812, ensuring interoperability across global payment systems.^[122] The check digit is computed using the Luhn algorithm, a modulus 10 checksum that detects common errors in data entry. Starting from the rightmost digit (excluding the check digit itself), every second digit is doubled; if the result exceeds 9, the digits are summed (e.g., 14 becomes 1+4=5). The total sum of all digits, including the check digit, must then be divisible by 10 (i.e., sum modulo 10 equals 0) for the PAN to be valid. This simple yet effective validation is integral to preventing invalid card numbers from processing.^[123]^[124] Historically, much of this PAN and associated data—such as expiration date, service code, and discretionary data—has been stored on the card's magnetic stripe, governed by the ISO/IEC 7813 standard. The stripe features three parallel tracks encoded at varying densities: Track 1 supports up to 79 alphanumeric characters (7-bit encoding with odd parity fill); Track 2 holds up to 40 numeric characters (low-density for reliability); and Track 3 accommodates up to 107 numeric characters for additional optional data. These tracks enable backward compatibility but transmit static information vulnerable to skimming.^[125] In contrast, the EMV smart chip represents a shift to more secure, dynamic storage via a contact interface with eight standardized gold contacts compliant with ISO/IEC 7816. The chip's integrated circuit stores payment application data, cryptographic keys, and risk parameters in protected memory, executing applets (small programs based on the Java Card platform) to generate transaction-specific dynamic data. For instance, during authorization, the applet computes application cryptograms—like the Authorization Request Cryptogram (ARQC)—using challenge-response protocols to authenticate the card and prevent counterfeiting. This enables offline or online verification without exposing static secrets.^[126]^[127] To address magnetic stripe vulnerabilities, some advanced cards incorporate reprogrammable stripes powered by embedded microcontrollers, allowing dynamic encoding of data such as CVV values that change per transaction or time interval. This technology emulates a traditional stripe while generating fresh verification codes, thwarting replay attacks from stolen data and bridging legacy systems with modern security. Adoption remains niche but is growing in high-risk markets for enhanced protection.^[128] By 2025, evolving standards emphasize tokenization, where static PANs are increasingly replaced by unique, limited-use tokens in a significant and growing share of global digital payment transactions—for instance, 35% of Mastercard and 50% of Visa e-commerce transactions as of mid-2025—minimizing exposure during storage and transmission on cards and devices.^[129] Network operators like Visa and Mastercard facilitate this by provisioning tokens via secure provisioning systems, ensuring the original PAN remains vaulted and unused in most interactions. Payment card data is retrieved through terminal interactions: swiping reads the magnetic stripe via electromagnetic heads; dipping inserts the chip for prolonged contact (typically 300-500 ms) to exchange data; and tapping uses near-field communication for rapid, non-inserted reads. These methods support transaction processing in under 1 second for tap operations, accelerating checkout while maintaining data integrity.^[130]

Security Technologies

Traditional Security Methods

Traditional security methods for payment cards relied on physical and basic cryptographic features to verify authenticity and prevent counterfeiting during manual and early electronic transactions, primarily before the widespread adoption of integrated circuit chips in the 1990s.^[131] These methods were designed for environments where cards were swiped through imprinters or basic readers, emphasizing visual inspection and simple data protection.^[132] Embossing involved raised lettering of the cardholder's name, account number, and expiration date on the card's surface, facilitating manual imprinting onto sales slips using a mechanical device pressed over carbon paper.^[131] This practice originated with early metal charge plates in the 1920s and persisted into plastic cards from the 1950s, allowing merchants to capture transaction details without electronic equipment.^[133] Accompanying the embossed details was a signature strip, typically a coated panel on the card's reverse side, where cardholders provided a specimen signature for manual comparison during in-person verification.^[134] This dual feature enabled pre-1990s merchants to authenticate cards through tactile and visual checks, reducing errors in handwritten processing.^[131] The magnetic stripe, introduced in the late 1960s, encoded card data in three tracks using iron oxide particles that could be read by swipe devices.^[8] To protect this data, basic encryption employed the Data Encryption Standard (DES), a symmetric algorithm adopted in the 1970s for securing track information like account numbers and expiration dates during transmission.^[135] DES used a 56-bit key to encrypt data blocks, providing rudimentary confidentiality against interception in early point-of-sale systems, though it was applied selectively as not all stripes were encrypted.^[136] Holograms and optical variable devices emerged in the 1980s as anti-counterfeiting measures, with Visa introducing a dove hologram in 1983 and MasterCard debuting a three-dimensional logo hologram later that year.^[137] These laser-etched images created shifting, iridescent effects visible under light, making replication difficult without specialized equipment and allowing quick merchant inspection for authenticity.^[138] Watermarks, in the form of subtle, embedded patterns or fine-line designs integrated into the card's plastic substrate, further deterred forgery by revealing intricate details only under specific angles or magnification.^[139] The Card Verification Value (CVV) or Card Verification Code (CVC), a three- or four-digit number printed on the card's back (not embossed), was introduced in the 1990s to verify physical possession during non-face-to-face transactions like mail order or early online purchases.^[140] For Visa and Mastercard, the CVV2 variant specifically supported card-not-present scenarios by confirming the merchant had not stored the code from prior swipes.^[141] Personal Identification Number (PIN) systems for debit cards, starting with the first ATM in 1967, required cardholders to enter a numeric code verified online by the issuer's host system via the magnetic stripe data.^[142] Pre-EMV implementations lacked onboard computation, relying on network authorization to check the PIN against stored values, which supported secure access to cash and purchases but required reliable connectivity.^[143] Despite these protections, traditional methods proved vulnerable to skimming, where devices covertly read magnetic stripe data during swipes, enabling card cloning and costing billions annually in fraud by the 2000s.^[8] DES encryption, with its short key length, became susceptible to brute-force attacks as computing power advanced, while physical features like holograms could be approximated by sophisticated counterfeiters.^[136] This led to the phase-out of magnetic stripes in EMV-mandated regions, with liability shifts incentivizing adoption by the 2020s to curb ongoing risks.^[144]

Modern Security Innovations

Contactless payment technologies, utilizing Near Field Communication (NFC) and Radio Frequency Identification (RFID), enable secure proximity transactions by adhering to the ISO/IEC 14443 standard, which operates at 13.56 MHz and limits communication to a short range of approximately 4 cm to minimize interception risks.^[145] This standard defines the physical characteristics, modulation schemes, and anti-collision protocols for contactless smart cards, ensuring interoperability across devices while supporting data rates up to 848 kbit/s.^[146] To further enhance security during these brief interactions, contactless sessions employ tokenization, where a temporary token replaces sensitive card data for the duration of the transaction, preventing exposure of the primary account number (PAN). Advancements in EMV chip technology have introduced dynamic data authentication (DDA), a cryptographic process that generates a unique, one-time signature using the card's private key and a challenge from the terminal, verifying the chip's authenticity and thwarting cloning attempts. Unlike static methods, DDA ensures that each transaction produces unpredictable data, significantly reducing the risk of counterfeit cards.^[147] Integrating biometrics, such as fingerprint sensors embedded directly on the card, adds a user-specific layer of verification; EMVCo's Biometric Payment Card Specification, released in 2021 and updated in 2024, sets a false acceptance rate benchmark of 1 in 50,000, with performance ensuring low false acceptance rates. By 2025, biometric-enabled cards are in commercial pilots in Europe and Asia, with global issuance expected to grow.^[148] Tokenization represents a core modern innovation, where the PAN is substituted with a unique, non-sensitive token through services like Visa Token Service (VTS), which provisions and manages tokens across digital and physical channels to limit data breach impacts.^[149] This process integrates with the EMV 3-D Secure 2.0 (3DS 2.0) protocol, enhancing authentication for card-not-present transactions by incorporating risk-based analysis and device data, thereby reducing fraud while improving user experience through frictionless approvals.^[150] As of 2025, emerging innovations include pilots for quantum-resistant encryption by major banks and networks, including post-quantum algorithms like lattice-based cryptography, to safeguard financial data against future quantum computing threats.^[151] Adoption of these technologies has accelerated globally; as of October 2025, EMV chip transactions account for approximately 94% of card-present transactions in the United States.^[152] Contactless payments account for more than two-thirds of in-person transactions globally on the Mastercard network, facilitating widespread adoption.^[153] Interoperability is bolstered by mobile wallets like Apple Pay and Google Pay, which emulate physical cards through host card emulation (HCE) or secure elements, allowing users to replicate EMV and contactless functionalities on smartphones for seamless transactions at NFC terminals.^[154] This emulation supports token provisioning from networks like Visa, ensuring consistent security across physical and digital formats.^[155]

Fraud, Misuse, and Regulations

Types of Card Fraud

Payment card fraud encompasses various methods by which unauthorized individuals exploit card data to make illicit transactions, resulting in significant global economic impact. According to the Nilson Report, worldwide payment card fraud losses reached $33.83 billion in 2023, marking a 1.1% increase from the previous year, though adoption of technologies like tokenization has contributed to reductions in certain fraud categories by up to 30% in online transactions.^[156]^[157] These fraud types primarily target vulnerabilities in physical cards, online systems, and account credentials, with card-not-present (CNP) transactions accounting for approximately 70% of total card fraud losses in the United States in 2024.^[158] Skimming involves the use of illicit devices attached to point-of-sale (POS) terminals, ATMs, or gas pumps to capture data from a card's magnetic stripe or EMV chip during legitimate transactions. These devices, often paired with hidden cameras or keyloggers to steal PINs, allow fraudsters to encode stolen data onto blank cards for subsequent use. In the United States, skimming results in significant annual losses to financial institutions and consumers.^[159] The prevalence of skimming persists despite chip technology, particularly in high-traffic locations like retail outlets and ATMs, where quick installation and data transmission via Bluetooth enable rapid exploitation. Card-not-present (CNP) fraud occurs in online, phone, or mail-order transactions where the physical card is not required, making it a dominant vector for misuse through stolen card details obtained via phishing, data breaches, or malware. Fraudsters exploit this by entering pilfered numbers, expiration dates, and CVV codes to complete purchases or subscriptions, often targeting e-commerce sites with weak verification. In 2024, CNP fraud represented the majority (over 70%) of global card fraud losses, driven by the surge in digital payments, with phishing schemes responsible for a significant portion of data acquisition.^[160] The impact is amplified in cross-border e-commerce, where jurisdictional challenges hinder quick detection. Account takeover fraud happens when criminals gain unauthorized access to a cardholder's online banking or payment accounts using stolen credentials, often through credential stuffing attacks that leverage passwords breached from unrelated sites. Once inside, perpetrators can view transaction history, change contact details, and request new card issuances or transfers, leading to prolonged misuse until detected. This method has risen with the proliferation of automated bots testing leaked credentials across platforms, resulting in billions in global losses annually as it enables broader identity theft beyond single transactions.^[161] Counterfeiting entails cloning card data to produce duplicate cards or digital replicas, historically relying on magnetic stripe copying but now involving sophisticated chip emulation in regions without widespread EMV adoption. The introduction of EMV chip standards has drastically reduced counterfeiting rates by 70-90% in compliant areas like Europe and parts of Asia, as chips generate dynamic authentication codes resistant to static duplication. However, it remains persistent in non-EMV markets, such as certain developing regions, where fraudsters use shimming devices to extract chip data for encoding onto fallback magnetic stripes. Emerging trends in 2025 highlight the integration of artificial intelligence, including deepfake technology to bypass know-your-customer (KYC) verification during account openings or card applications, allowing fraudsters to impersonate victims using synthetic videos or audio.^[162] Additionally, cross-border scams facilitated by dark web marketplaces have intensified, with over 269 million stolen card records advertised in 2024 alone, enabling organized networks to launder funds through international transactions.^[161] These developments underscore the evolving sophistication of fraud, shifting toward AI-augmented social engineering and global data trafficking.

Prevention Measures and Industry Standards

Issuers implement several key measures to prevent payment card fraud, including 3D Secure (3DS) authentication, which provides an additional verification layer for online transactions by prompting the cardholder for identity confirmation before authorization.^[150] This protocol, managed by EMVCo, shifts liability for fraudulent card-not-present transactions to the issuer if authentication is not attempted, thereby incentivizing its use.^[150] Additionally, velocity checks monitor the frequency and volume of transactions to detect anomalies, such as limiting approvals to no more than three attempts per minute from the same card or device, triggering alerts or blocks for suspicious patterns.^[163] Merchants must adhere to strict compliance standards to safeguard cardholder data, with the Payment Card Industry Data Security Standard (PCI DSS) version 4.0 requiring full implementation by March 31, 2025.^[164] This standard mandates encryption of cardholder data during storage, transmission, and processing using strong cryptography to render primary account numbers unreadable.^[165] It also enforces annual audits or self-assessments for merchants handling card data, depending on transaction volume, to validate ongoing security controls and vulnerability management.^[166] EMV chip technology includes liability shift rules that assign responsibility for counterfeit fraud to the non-compliant party in a transaction; prior to widespread EMV adoption, issuers bore liability for such losses when using magnetic stripe cards, but post-shift, merchants without EMV-enabled terminals assume the risk.^[167] In the European Union, the General Data Protection Regulation (GDPR) governs data breaches involving payment card information, requiring organizations to notify authorities within 72 hours of detecting unauthorized access to personal data, including card details, and to implement measures to mitigate risks.^[168] Complementing this, the proposed Payment Services Directive 3 (PSD3), expected for implementation in 2026 or later, mandates enhanced strong customer authentication for electronic payments to reduce fraud, expanding on PSD2 requirements with stricter verification protocols.^[169] Industry bodies such as the PCI Security Standards Council (PCI SSC) and EMVCo play central roles in establishing global standards; PCI SSC develops and maintains PCI DSS to protect cardholder data across the payment ecosystem, while EMVCo oversees EMV specifications for chip-based security.^[170] These organizations, along with card networks like Visa and Mastercard, enforce global chargeback rules that monitor dispute ratios, with thresholds typically under 1% to avoid penalties such as increased fees or program termination for excessive disputes.^[171] As of 2025, the payments industry increasingly relies on artificial intelligence and machine learning for predictive fraud prevention, analyzing transaction patterns in real-time to flag risks while reducing false positives by approximately 20%, thereby minimizing unnecessary transaction declines.^[172]

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We are the only global player in the market to master the complete payment card design and card issuance process—from the artwork creation to card ...We Unlock The Issuer And... · Limitless Card... · Instant Card Issuance And...Missing: underwriting assignment
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What is AML and KYC in Payments?
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AML & KYC: Compliance Guide - Carta
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KYC (Know Your Customer) Definition, Guidelines & Regulations
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Co-Branded Credit Card: Definition, How It Works, Examples
A co-branded credit card is sponsored by two parties: typically, a retailer and a bank or card network like Visa or Mastercard and usually bears the logos ...Examples of Co-Branded Cards · Retailer Co-Branded Cards
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[PDF] Instant Digital Issuance: Best practices on fraud management
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Advances and enhancements to contactless, NFC payments, closely linked to Open Banking. This will see more banks and financial services providers opening APIs ...Missing: onboarding | Show results with:onboarding
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Jan 28, 2025 · Open banking could help accelerate adoption of real-time payments, since APIs can be used to direct access to bank accounts to verify funds.
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Credit Card Market Share by Issuer (2025) - WalletHub
Top Credit Card Issuers by Purchase Volume (2024): Chase ($1,344 billion), American Express ($1,168 billion), Citi ($616 billion), Capital One ($610 billion) ...
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ISO/IEC 7810:2003 is one of a series of standards describing the characteristics of identification cards.
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Credit Card Size: Dimensions and Design Standards - Remitly Blog
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Hologram Security on Credit Cards: How It Works & Why It Matters
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The PVC-free card provides the easiest way to move to more sustainable payments for any card programme – high or low volume – while eliminating more toxic PVC.
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The track formats used in this document are based on ISO Standards, however, other formats may be used. Contact your card issuer for your exact requirements.
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EMV® Contact Chip | EMVCo
EMV Contact Chip supports in-store chip card payments that require physical contact with the acceptance terminal.Missing: storage | Show results with:storage
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Each credit card company has their own unique character embossed on the front of their cards. Visa cards display a stylized embossed “V” located to the right of ...Missing: CVV magnetic encryption
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Apr 23, 2022 · ... card-issuing banks. In 1979, Master Charge was renamed MasterCard.10. Discover. The card issuer and network now recognized as Discover was ...
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May 14, 2025 · EMVCo supports biometric cards by creating specifications, focusing on fingerprint authentication, and developing performance and security ...Missing: DDA dynamic
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Tokens are subject to 3DS 2.0 protocol, the payment industry's operational security authentication protocol for CNP payments. (For F2F transactions ...How Payments Work · Token Overview · Network Tokens
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Velocity checks monitor transaction data elements within intervals, looking for anomalies, using quantity, data element, and timeframe, to detect fraud.
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A data breach is when the personal data you are responsible for is disclosed, either accidentally or unlawfully, to unauthorised recipients or is made ...
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A chargeback is a rules-based mechanism, with time-sensitive workflows, that enables the issuer and the acquirer to determine the financial liability of a ...
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The result has been lower levels of fraud and a better customer experience, with account validation rejection rates cut by 15-20 per cent. J.P. ...