TeamViewer
TeamViewer SE is a German multinational technology company that develops and markets remote connectivity software enabling secure access, control, and support of devices across platforms.[1][2] Founded in 2005 and headquartered in Göppingen, the firm initially created its flagship product to minimize travel expenses associated with technical support by allowing remote desktop sharing.[2][3] The software supports a range of applications, including IT troubleshooting, online meetings, and augmented reality-assisted maintenance, serving over 600,000 business customers globally.[4] TeamViewer has achieved notable milestones, such as being named a Microsoft Partner of the Year in 2023 for integrating its solutions with Microsoft Teams and earning repeated "Top Rated" recognition from TrustRadius for user experience.[5][6] The company went public on the Frankfurt Stock Exchange in 2019 and reported revenue growth to €190.7 million in Q2 2025, driven by enterprise adoption amid expansions in cloud-based services.[7] However, it has faced security challenges, including a 2024 breach in its corporate IT environment—detected and contained without impacting customer systems—and historical vulnerabilities in older software versions that enabled potential unauthorized access.[8][9] These incidents underscore ongoing risks in remote access tools, though TeamViewer maintains end-to-end encryption and has issued patches and advisories to mitigate threats.[10]History
Founding and Early Development
TeamViewer was established in 2005 in Göppingen, Germany, coinciding with the release of its inaugural software version aimed at enabling remote access to computers and thereby reducing the necessity for technicians to travel to client sites for support and maintenance tasks.[3][11] The initial product focused on providing straightforward remote desktop connectivity, addressing a practical need for efficient IT assistance without physical presence, which aligned with emerging demands for cost-effective remote support solutions in the mid-2000s.[12][13] In its formative years, the company operated as a small entity developing the core remote control application, which rapidly achieved widespread adoption through a freemium distribution model that offered free use for non-commercial purposes while monetizing enterprise features.[11] Early iterations emphasized cross-platform compatibility and ease of deployment, with the software leveraging connection protocols to facilitate secure sessions over the internet, contributing to its utility in both personal and professional contexts.[14] By the late 2000s, TeamViewer had expanded its user base significantly, installing the software on millions of devices globally as remote work and support practices gained traction, though specific version release details from this period remain limited in public records.[11] This foundational growth was driven by the software's reliability in enabling unattended access and file transfers, establishing TeamViewer as an early leader in the remote access market prior to broader commercialization efforts.[13]Growth and International Expansion
TeamViewer underwent accelerated growth after its 2009 acquisition by GFI Software, which integrated the product into broader IT management portfolios and expanded distribution networks. This period saw the software's viral adoption through its free personal-use version, leading to installations surpassing 1 billion devices by 2015 and 1.5 billion unique IDs by 2017.[15] The 2014 acquisition by Permira for approximately €870 million further catalyzed development, funding marketing initiatives and enterprise-focused enhancements that sustained double-digit revenue growth amid rising demand for remote IT support.[16] [17] By 2019, ahead of its initial public offering on the Frankfurt Stock Exchange, TeamViewer reported annual revenue of €390 million and had achieved installations exceeding 2 billion devices globally, with over 560,000 paying customers. Revenue momentum persisted post-IPO, climbing to €627 million in 2023 and €671 million in 2024, driven by a shift toward subscription-based enterprise annual recurring revenue (ARR), which increased 20% year-over-year in Q1 2025. Fiscal 2025 guidance anticipates revenue between €778 million and €797 million, reflecting sustained expansion in corporate segments despite macroeconomic pressures.[18] [11] [19] [20] [21] [22] International expansion paralleled this revenue trajectory, with TeamViewer establishing subsidiaries and offices across all continents to localize sales, support, and R&D. Key milestones included the April 2022 opening of a regional headquarters in Singapore to accelerate APAC adoption and a new ANZ office in Adelaide, marking a decade of operations in Australia. In 2023, the company opened its first Latin American office in Guadalajara, Mexico, and a Mumbai office in India to target enterprise growth in high-potential markets. These initiatives, alongside over 660,000 global customers by 2025, underscore a strategy emphasizing geographic diversification and enterprise penetration, particularly in EMEA and APAC regions.[23] [24] [25] [26] [3] [27]Public Listing and Corporate Evolution
TeamViewer converted its legal structure to a stock corporation (Aktiengesellschaft, or AG) in preparation for its initial public offering (IPO), adopting the name TeamViewer AG to facilitate the listing process.[28] The company completed its IPO on September 25, 2019, with shares beginning trading on the regulated Prime Standard segment of the Frankfurt Stock Exchange under the ticker symbol TMV.[29][30] The offering priced at €26.25 per share, within an initial range of €23.50 to €27.50, and involved up to 84 million existing shares primarily from selling shareholder Permira, resulting in a market capitalization of approximately €5.25 billion and a placement volume of €1.97 billion.[29][31] This marked the largest technology IPO in Germany since the dot-com era, reflecting strong investor demand for the remote access software provider amid a recovering European IPO market.[30][32] Post-IPO, TeamViewer gained inclusion in major indices including the MDAX and TecDAX, enhancing its visibility and liquidity for institutional investors.[12] In March 2020, majority shareholder Permira divested an additional 22 million shares in a secondary offering valued at €704 million, further distributing ownership while retaining significant influence.[31] The transition to public status shifted corporate priorities toward transparent financial reporting and sustained revenue growth, with the company reporting a 95% increase in core profits in its first post-IPO quarterly results for Q3 2019, driven by expanded enterprise adoption.[33] As a publicly traded entity, TeamViewer has emphasized long-term value creation through operational efficiency and strategic investments, navigating market volatility including the COVID-19 pandemic's boost to remote work demand. By 2025, approximately 75% of shares remained in free float, supporting diversified ownership beyond private equity roots.[34] The company's governance evolved to comply with stringent regulatory requirements, including enhanced disclosure under German stock corporation laws, while maintaining a focus on innovation in remote connectivity solutions.[35]Recent Acquisitions and Challenges
In December 2024, TeamViewer acquired UK-based 1E for an enterprise value of US$720 million on a cash-free, debt-free basis, aiming to bolster its digital employee experience (DEX) offerings with 1E's capabilities in remote software issue detection and resolution for desktop PCs.[36][37] This marked TeamViewer's largest acquisition to date, financed through existing cash reserves and debt facilities, with initial integrations announced in March 2025 to combine 1E's tools with TeamViewer's remote access platform for enhanced IT management.[38] Earlier expansions included acquisitions in the augmented reality (AR) sector, such as Ubimax in 2020 for wearable AR software and Upskill in 2021 for industrial AR solutions, contributing to TeamViewer's frontline worker platform alongside purchases like Picavi, Viscopic, and Xaleon.[39] Post-1E acquisition, TeamViewer encountered integration hurdles, with the 1E segment underperforming due to delays in merging operations and realizing synergies, contributing to softer-than-expected results.[40] In Q3 2025, overall revenue grew 4% year-over-year in constant currency to €192 million, driven by enterprise demand, but 1E's lag prompted TeamViewer to guide full-year 2025 revenue toward the lower end of its €778–797 million outlook as announced on October 21, 2025.[41][40] This adjustment increased pressure on stock estimates, reflecting broader challenges in post-merger execution amid a competitive remote access market.[42]Technology and Functionality
Core Features and Capabilities
TeamViewer provides remote access and control capabilities that allow users to connect to and operate distant computers or devices over the internet, replicating local interaction through screen sharing and input transmission.[43] This includes both attended support, where connections require user approval via a unique ID and password, and unattended access configured in advance for autonomous remote management without recipient intervention.[44] The software supports full remote desktop control across multiple monitors and resolutions up to 4K, enabling detailed visual fidelity for tasks such as troubleshooting or administration.[45] File transfer is a foundational capability, permitting secure bidirectional movement of files between connected endpoints, including support for large volumes via drag-and-drop or dedicated sessions without necessitating VPN infrastructure.[43] Remote printing allows documents generated on the remote device to output directly to the operator's local printer, streamlining workflows in support scenarios.[46] Integrated communication tools, including in-session chat and voice-over-IP, facilitate real-time collaboration between operators and remote users during connections.[47] Cross-platform compatibility forms a core strength, with native support for Windows, macOS, Linux, iOS, and Android operating systems, ensuring seamless connectivity regardless of device heterogeneity.[48] Additional functionalities encompass Wake-on-LAN for powering up remote machines and basic VPN replacement for secure tunneling, reducing dependency on separate networking tools.[46] These features collectively enable efficient remote IT support, device management, and collaborative work, with connections secured by end-to-end AES-256 encryption.[43]Supported Platforms and Compatibility
TeamViewer provides cross-platform remote access and support capabilities, enabling connections between devices running Windows, macOS, Linux, Android, iOS, and Chrome OS. This compatibility allows users to control or monitor devices across different operating systems, with both 32-bit and 64-bit client versions available for desktop platforms to match host architectures.[49][50] For Windows, TeamViewer supports client and host operations on Windows 11 (builds including 25H2, 24H2, 23H2, and 22H2) and Windows 10 version 22H2, as well as Windows Server editions 2016, 2019, and 2022. Support for older versions such as Windows 7, 8, 8.1, Server 2008 R2, and Server 2012 ended on April 29, 2025, with no further updates or active servicing provided thereafter. Windows 11 on ARM is also compatible. Minimum TeamViewer versions vary by build, such as 15.71 for Windows 11 25H2.[49][51] macOS compatibility includes versions 12 (Monterey) through 15 (Sequoia), with support for macOS 12 ending with releases after November 25, 2025. Earlier versions down to OS X 10.7 receive no active support, limited to legacy TeamViewer releases like version 15.48 for macOS 10.15 (Catalina). Minimum client versions are specified, such as 15.70.5 for macOS 15.[49][52][53]| Platform | Supported Distributions/Versions | Notes |
|---|---|---|
| Linux (TeamViewer Classic) | Debian 11/12; Ubuntu 22.04/24.04/25.04; Linux Mint 21.x/22.x; Fedora 41/42; Red Hat Enterprise 8.x/9.x; Rocky Linux 8.x/9.x/10.x; AlmaLinux 8.x/9.x/10.x; CentOS Stream 9; SUSE Enterprise 12.x/15.x; openSUSE 15.x; Raspberry Pi OS | Minimum versions vary (e.g., 15.64 for Ubuntu 24.04); other distributions may work unofficially but lack full support. Requires Linux kernel 2.6.27 and GLIBC 2.17 minimum for Classic.[49][54][55] |
Architectural and Protocol Details
TeamViewer utilizes a hybrid client-server architecture designed to enable remote access without requiring inbound firewall configurations. Both the controlling and controlled devices initiate outbound connections to TeamViewer's master servers, which broker the initial handshake using dynamic IP addresses associated with domains such as master*.teamviewer.com and router*.teamviewer.com.[58] Following this, the system attempts a direct peer-to-peer (P2P) connection in approximately 70% of sessions via UDP or TCP, leveraging techniques like UDP hole punching to traverse NATs and firewalls; if unsuccessful, it falls back to routing through TeamViewer's redundant server network using TCP or HTTP-tunneling.[59][60] This outbound-only model, primarily over TCP/UDP port 5938 (with fallbacks to TCP 443 and 80), ensures compatibility across platforms without port forwarding.[58] The core communication employs a proprietary protocol layered over these transport mechanisms, encapsulating remote display data, input commands, and features like file transfer, distinct from open standards such as RDP or VNC but incorporating similar functionalities with built-in NAT traversal.[59] Authentication occurs via the Secure Remote Password (SRP) protocol version 6, a challenge-response mechanism that prevents plaintext password transmission or storage on servers, supplemented by options like two-factor authentication (TOTP) and trusted device lists.[59][60] Session security integrates RSA 4096-bit asymmetric key exchange to derive symmetric keys, followed by AES 256-bit encryption for all data in transit, ensuring end-to-end protection where private keys remain solely on client devices.[59] Recent implementations include perfect forward secrecy to mitigate compromise of long-term keys.[59] Certificates from a public key infrastructure (PKI) validate system integrity during connections, guarding against man-in-the-middle attacks.[60] Data centers hosting servers, located in Germany and Austria, adhere to ISO 27001 standards for operational security.[59]Security Measures and Incidents
Integrated Security Features
TeamViewer employs end-to-end encryption for all remote connections, utilizing a 4096-bit RSA public/private key exchange for initial authentication followed by 256-bit AES session encryption to protect data in transit, including screen sharing, file transfers, and chat interactions.[61] This encryption applies uniformly across all TeamViewer versions and prevents interception by third parties, including TeamViewer itself, as keys are generated and managed exclusively between client and host devices.[62] Multi-factor authentication (MFA) is integrated for user accounts and device connections, requiring a second verification factor such as a time-based one-time password (TOTP) from an authenticator app or SMS, in addition to the primary password.[63] Biometric authentication, including fingerprint or facial recognition on supported devices, further secures access to the application and session initiation.[64] Brute-force protection limits login attempts, automatically locking accounts after repeated failures to mitigate dictionary or credential-stuffing attacks.[63] Access controls include trusted device management, where users can designate specific devices for seamless connections via push notifications, reducing reliance on passwords for recurring access.[62] Block and allowlists enable administrators to restrict connections by IP address, device ID, or user group, with conditional access policies enforcing rules based on location, time, or device compliance in enterprise deployments.[65] Additional features such as a customizable black screen during sessions obscure the remote display from local viewers, and password-protected TeamViewer settings prevent unauthorized configuration changes.[63] For auditing, integrated event logs record connection details, user actions, and access attempts, exportable for compliance with standards like GDPR or ISO 27001.[66]Documented Vulnerabilities and Responses
In 2020, TeamViewer addressed CVE-2020-13699, a severe authentication bypass vulnerability in versions up to 15.2 that could enable attackers to steal system passwords through improper handling of master passwords during connection attempts.[9] The issue stemmed from weak encryption in password storage and transmission, affecting both Windows and other platforms; TeamViewer issued patches for all supported versions and recommended immediate updates alongside enabling two-factor authentication where available.[9] CVE-2019-18196 involved DLL sideloading in the Windows service component of TeamViewer versions 11 to 14, allowing local attackers to execute arbitrary code by placing malicious DLLs in searchable paths during service startup.[67] Discovered by SafeBreach Labs, the flaw exploited unquoted search paths; TeamViewer responded by releasing updated versions that hardened DLL loading mechanisms and advised users to upgrade from legacy installations.[67] More recently, on January 28, 2025, TeamViewer disclosed and patched CVE-2025-0065 (TV-2025-1001), a high-severity local privilege escalation vulnerability in Windows clients prior to version 15.62, caused by improper neutralization of argument delimiters in the TeamViewer_service.exe process.[68][69] Exploitation required local access but could lead to full system compromise; the advisory urged updating to the latest release and restricting service permissions as interim mitigation.[70][69] On June 24, 2025, CVE-2025-36537 (TV-2025-1002) was reported in TeamViewer Remote Management for Windows, involving incorrect permission assignments that permitted unprivileged local users to elevate to system privileges, specifically impacting Backup, Monitoring, and Patch Management features.[71][72] TeamViewer limited exploitation to authenticated local scenarios and deployed fixes via automatic updates, emphasizing that remote exploitation was not feasible without prior access.[72][73] TeamViewer's responses consistently involve rapid patch deployment through its update mechanisms, public advisories via the Trust Center, and recommendations for enabling endpoint protections like antivirus integration.[10] The company has issued over a dozen bulletins since 2024, covering issues from driver signature flaws to third-party library vulnerabilities like libwebp (CVE-2023-4863 and CVE-2023-41064).[10] Historical vulnerabilities, such as CVE-2010-3128 in version 5.0 allowing buffer overflows, were similarly patched with version upgrades.[74] Overall, while vulnerabilities have occasionally exposed local escalation risks, TeamViewer's patch cadence and feature-specific scoping have mitigated widespread remote threats.[10]2024 Corporate Network Breach
On June 26, 2024, TeamViewer's security team detected an irregularity in the company's internal corporate IT environment, prompting an immediate investigation into a suspected cyber intrusion.[8] The breach was later attributed to unauthorized access gained through a compromised employee account, enabling attackers to infiltrate the network without impacting customer-facing products or services.[75] [76] The intruders accessed and exfiltrated limited data from the corporate network, including employee directory information such as names and corporate contact details, as well as encrypted employee passwords; however, no source code, customer data, or production environments were compromised.[77] [78] Cybersecurity researchers attributed the attack to an advanced persistent threat (APT) group, with some analyses linking it to APT29 (also known as Cozy Bear), a Russian state-sponsored hacking entity previously associated with intrusions into Western organizations.[79] TeamViewer confirmed the involvement of an APT actor but did not publicly specify the group, emphasizing that the incident was contained by June 28, 2024, with no evidence of ongoing access.[76] [80] In response, TeamViewer isolated affected systems, enhanced monitoring, and engaged external forensic experts to validate the scope and remediation efforts.[76] The company issued a security bulletin (TV-2024-1005) on July 4, 2024, assuring stakeholders that the breach did not expose vulnerabilities in its core remote access software and that all customer endpoints remained secure.[76] No regulatory notifications were required due to the absence of personal data breaches affecting users, though the incident highlighted ongoing risks of supply-chain targeting for remote access providers.[81]Licensing and Commercial Practices
Personal vs. Commercial Use Distinctions
TeamViewer distinguishes between personal and commercial use through its licensing terms, with the free version restricted to non-commercial applications. Personal use is defined as connections between an individual's own devices for private purposes, such as accessing a home computer remotely or assisting family members without any form of payment or professional context. This aligns with TeamViewer's policy that private use involves no direct or indirect compensation, ensuring the software supports unpaid, non-business activities like personal file transfers or troubleshooting personal hardware.[82][83] Commercial use, by contrast, encompasses any application tied to paid services or business operations, including remote support for clients, internal corporate IT assistance, or activities in environments exceeding private or family scope. Examples include technicians connecting to customer devices as part of a billable service or enterprises using the tool for employee support, which require a paid license regardless of whether the end activity generates revenue indirectly. TeamViewer's End User License Agreement (EULA) explicitly limits the free version to personal, non-commercial purposes, mandating commercial subscriptions for professional deployments.[84][85][86] Enforcement relies on algorithmic detection of usage patterns, such as frequent sessions, connection durations, or IP behaviors indicative of business activity, which can trigger blocks or prompts to upgrade in free accounts. While the free personal license provides essential features like basic remote control, chat, and file transfer, it omits commercial-grade capabilities, including unattended access for multiple devices, advanced reporting, remote printing, and dedicated support channels available only in paid tiers. Commercial licenses are structured around concurrent or named users, with pricing scaled to organizational needs, ensuring scalability for enterprises while prohibiting free version circumvention.[87][88]Pricing Models and Subscription Policies
TeamViewer distinguishes between free access for personal, non-commercial use and paid subscriptions required for any commercial or business-related applications, with the latter enforcing licensing to prevent unauthorized professional deployment.[88] Subscriptions operate on an annual billing cycle, with payments due upfront and automatic renewal facilitated by email reminders prior to the anniversary date; failure to renew results in cessation of premium features and updates.[89][88] The standard license tiers—Remote Access, Business, Premium, and Corporate—scale in capacity for users, devices, and concurrent sessions, priced per user with inclusions for managed endpoints. Remote Access targets individual users for access to up to three personal devices, while higher tiers support organizational needs like multi-user management and mass deployment.[90] Publicly listed pricing for core plans, billed annually, is as follows:| Plan | Monthly Price (Billed Annually) | Maximum Users | Maximum Managed Devices | Base Concurrent Connections |
|---|---|---|---|---|
| Business | $50.90 | 1 | 200 | 1 |
| Premium | $112.90 | 15 | 300 | 1 (expandable to 5 via add-ons) |
| Corporate | $229.90 | 30 | 500 | 3 (expandable to 10 via add-ons) |
Enforcement Mechanisms and User Disputes
TeamViewer utilizes an automated detection system to identify unlicensed commercial usage of its free personal edition, analyzing factors such as connection frequency, session duration, number of endpoints accessed, and IP address characteristics indicative of business environments.[91][92] Upon flagging potential violations, the software issues in-app notifications like "Commercial Use Suspected" or "Commercial Use Detected," which restrict connectivity by imposing timeouts or full blocks until resolution.[84] Users affected by detection can initiate a review by submitting details via TeamViewer's online form, where the company verifies claims of personal use against usage logs; successful appeals result in a reset of the TeamViewer ID to restore free access, while unverified cases remain restricted, directing users toward commercial licensing.[84] This process aligns with the End User License Agreement (EULA), which prohibits non-personal applications without payment and empowers TeamViewer to enforce compliance through access controls.[85] For unresolved licensing or subscription issues, enforcement escalates via internal dunning procedures, culminating in referral of unpaid invoices to external debt collection agencies, such as Creditreform, to recover amounts for detected commercial sessions or auto-renewed services.[93][94] TeamViewer discloses in its privacy policy that such agencies receive necessary data for debt management, including personal identifiers tied to the disputed usage.[95] User disputes frequently center on perceived inaccuracies in detection algorithms, with reports of blocks during legitimate personal remote access from corporate networks, though TeamViewer maintains these measures prevent EULA circumvention.[84] Billing-related conflicts have involved automatic subscription renewals, as in the 2021 class-action suit Jack Gershfeld v. TeamViewer US, Inc., where the plaintiff claimed violations of California's Automatic Renewal Law due to unauthorized charges following a one-year subscription; the Ninth Circuit affirmed dismissal in January 2023, ruling TeamViewer's disclosures adequate under the law.[96][97] Additional grievances include collection demands for post-trial or non-renewed periods, often resolved through customer support but occasionally leading to agency involvement without court escalation in documented cases.[94][98]Misuse, Abuse, and Ethical Concerns
Prevalence in Tech Support Scams
TeamViewer, a legitimate remote desktop software, has been frequently exploited by scammers in technical support fraud schemes, where perpetrators contact victims via unsolicited phone calls or pop-up alerts claiming device infections, then instruct them to download and grant access through the tool to ostensibly diagnose and repair issues. Once connected, fraudsters can view screens, manipulate files, install malware, steal credentials, or demand payments for fabricated fixes, often targeting vulnerable groups like older adults.[99][100][101] Empirical analysis of 60 recorded scam interactions by researchers at Stony Brook University revealed TeamViewer usage in 12% of cases, trailing LogMeIn Rescue (60%) but confirming its role alongside other remote access tools in over 80% of sessions analyzed. While specific recent prevalence metrics are scarce, law enforcement and cybersecurity alerts from 2023 onward continue to highlight TeamViewer in remote access scam tactics, often paired with competitors like AnyDesk, amid broader tech support fraud losses exceeding $1.4 billion reported to the FBI in 2024.[99][102][101] TeamViewer maintains that its security features, including visible connection prompts, two-factor authentication, and automated detection of suspicious patterns like brief sessions from mismatched geographic locations, limit successful abuse, with the company advising users to reject unsolicited access requests. However, victim reports and scam documentation indicate persistent circumvention attempts, underscoring the software's appeal to fraudsters due to its ease of deployment and perceived legitimacy compared to custom malware.[100][99]Unauthorized Access and Account Compromises
In June 2016, a wave of unauthorized remote access incidents affected TeamViewer users worldwide, with reports of hackers gaining control of victims' computers to drain linked bank accounts and cryptocurrency wallets. Users described sudden connections from unknown parties, often resulting in financial losses exceeding thousands of dollars per case, prompting widespread alarm on forums and social media. TeamViewer investigated and concluded that the attacks stemmed from credential stuffing, where attackers used email-password pairs leaked from unrelated data breaches to access TeamViewer accounts, exploiting users' tendency to reuse weak passwords across services. The company reported a "significant" number of abused accounts but found no evidence of a breach in their core infrastructure or bypass of two-factor authentication features.[103] TeamViewer later disclosed in May 2019 that its software build environment had been compromised earlier in 2016 by the Chinese-linked Winnti hacking group, who accessed source code but were expelled without altering binaries or exfiltrating customer data. The firm maintained that this intrusion was unrelated to the contemporaneous user account abuses, attributing the latter solely to poor user password hygiene rather than any systemic vulnerability in authentication mechanisms. Independent analyses supported this, noting TeamViewer's end-to-end encryption and session validation protocols, though critics argued the build compromise raised questions about potential undetected tampering. No peer-reviewed studies contradicted TeamViewer's forensic findings, but the incident highlighted risks in remote access tools where unattended access relies on static ID-password pairs susceptible to offline cracking if credentials are obtained elsewhere.[104][105] Beyond 2016, isolated cases of account compromises have persisted, often tied to attackers scanning for exposed TeamViewer instances or exploiting default configurations lacking strong passwords. For instance, ransomware operators like those deploying LockBit have used hijacked TeamViewer sessions for initial network footholds, gaining unauthorized persistence after credential compromise via phishing or malware. Health-ISAC warnings in 2024 noted threat actors abusing TeamViewer in healthcare sectors, where compromised employee accounts enabled lateral movement without direct infrastructure breaches. These events underscore that while TeamViewer's servers have not shown evidence of mass credential dumps, the software's ubiquity—installed on hundreds of millions of devices—amplifies risks when users enable unattended access with inadequate safeguards.[106][107]Company Mitigation Efforts and Legal Actions
TeamViewer maintains a dedicated trust and safety team comprising big data analysts, security engineers, and cyber strategists to monitor and counteract misuse of its remote access software.[108] This team employs technical solutions, including allowlists and blocklists, to restrict unauthorized or abusive connections, with these measures developed in collaboration with government and business institutions.[108] The company also participates in global forums addressing the misuse of remote access platforms, emphasizing proactive impediment of fraudulent activities over reactive fixes.[108] To combat tech support scams, TeamViewer provides user guidance through its knowledge base, advising against granting device access during unsolicited calls and highlighting red flags such as aggressive demands for remote control.[100] Built-in security protocols include visible access dialogs, one-time passwords, end-to-end encryption, and two-factor authentication to enhance session security and deter exploitation.[100] Users are instructed to immediately disconnect suspicious sessions, change passwords, and scan devices for malware following potential incidents.[100] TeamViewer facilitates scam reporting via an online form at https://www.teamviewer.com/en/report-a-scam/, where users can submit log files (e.g., "TeamViewerXX_Logfile.log") for investigation, though the company notes that individual resolutions are not guaranteed and recommends parallel reporting to local law enforcement.[108][100] It collaborates with anti-scam initiatives, including membership in the Global Anti-Scam Alliance since at least July 2025 and partnership with Stop Scams UK, to share intelligence and promote awareness.[109][110] Public records indicate no major lawsuits initiated by TeamViewer directly against scammers or abusers, with efforts instead focused on policy enforcement through its end-user license agreement, which requires users to indemnify the company for non-compliance-related losses.[85] The firm asserts a legitimate interest in defending against fraud via data processing and monitoring, but relies primarily on user vigilance and authority referrals rather than independent litigation.[95] Educational materials, such as printable anti-scam guides, are distributed to reinforce these preventive strategies.[100]Business Performance and Market Position
Adoption Metrics and User Base
TeamViewer software has been installed on more than 400 million devices globally, reflecting its widespread adoption for both personal and commercial remote access needs.[111] Of these installations, at least 30 million devices maintain active connections to the TeamViewer network at any given time, enabling real-time remote support and control across diverse operating systems.[111] This scale underscores the product's utility in scenarios ranging from individual troubleshooting to enterprise IT management, with free availability for non-commercial use driving broad consumer uptake since its launch in 2005. Commercial adoption centers on approximately 640,000 paying subscribers as of Q3 2025, predominantly small and medium-sized businesses (SMBs) that leverage the platform for customer support, IT operations, and device management.[112] [113] These customers span industries worldwide, with TeamViewer reporting service to organizations of all sizes, including Fortune 500 companies, though SMBs constitute the core of its subscription base.[4] The distinction between free personal licenses and paid commercial ones has facilitated this dual-market penetration, with enforcement of usage policies helping sustain revenue from business users amid high overall installation volumes. Adoption metrics highlight accelerated growth during periods of remote work demand; for instance, remote desktop software usage, including TeamViewer, surged 75% in Q1 2020 amid the COVID-19 shift to distributed operations.[114] Post-pandemic, the platform has maintained momentum through integrations with enterprise tools and expansions into IoT and AR applications, contributing to steady increases in connected devices and active sessions, though precise concurrent user counts beyond the 30 million threshold remain proprietary.[115]Financial Results and Revenue Trends
TeamViewer has demonstrated consistent revenue growth since its initial public offering in 2019, with annual recurring revenue (ARR) serving as a core metric reflecting its subscription-based model. In fiscal year 2024, the company achieved pro forma revenue of €671.4 million, marking a 9% year-over-year increase, driven by expansion in enterprise contracts and hybrid work trends.[116] Standalone revenue for the same period grew at a similar pace, underscoring organic progress amid acquisitions like TuYa Smart. Adjusted EBITDA margins remained robust at 44%, highlighting operational efficiency despite macroeconomic headwinds in IT spending.[117] Into 2025, quarterly results showed sustained but moderating growth. In Q1 2025, pro forma revenue rose 7% year-over-year. Q2 delivered €191 million in pro forma revenue, up 6% in constant currency, with enterprise revenue surging 15% due to large deal wins in corporate remote access segments. Q3 revenue reached €192 million on a pro forma basis, increasing 4% in constant currency (3% reported), while standalone revenue grew 6% in constant currency; enterprise revenue advanced 8% in constant currency, offsetting softer consumer trends. ARR stood at €756.8 million by Q3 end, up 4% in constant currency year-over-year, reflecting steady subscription renewals and upsell activity.[118][119][120]| Period | Pro Forma Revenue (€M) | YoY Growth (cc) | ARR (€M, end-period) | Enterprise Revenue Growth (cc) |
|---|---|---|---|---|
| FY 2024 | 671.4 | +9% | N/A | N/A |
| Q1 2025 | N/A | +7% | N/A | N/A |
| Q2 2025 | 191 | +6% | N/A | +15% |
| Q3 2025 | 192 | +4% | 756.8 | +8% |