Welcome to 2FA-Tool.com ("we", "our", or "the Website"). We understand the paramount importance of two-factor authentication in protecting personal and enterprise digital accounts. From day one, we built this tool around a strict Zero-Trust, Client-Side Only security architecture.
This Privacy Policy outlines how your information is handled, how local cryptographic computations function, how advertising partners (including Google AdSense) utilize cookies, and how you can exercise your privacy rights.
Effective Date: March 2026 · Version: v2.1
1. Core Security Principle: Zero Upload, Zero Storage of 2FA Secrets
Unlike conventional online generators that send user secrets to remote backend servers for computation, 2FA-Tool.com operates 100% on the client side within your local web browser:
Local In-Memory Crypto
Base32 decoding and HMAC-SHA1 hashing are executed strictly by the browser native Web Crypto API.
Works Fully Offline
Disconnect your internet or enable airplane mode; codes and timers continue to refresh accurately with zero server requests.
Instant Memory Release
No tracking cookies, no LocalStorage persistence. Closing the browser tab destroys all memory states immediately.
2. Google AdSense & Third-Party Advertising Cookies Disclosure
To support the ongoing free operation, maintenance, and global CDN hosting costs of this tool, third-party advertisements (including Google AdSense) may be served on the website. In accordance with Google policies and privacy regulations:
- Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to this website or other websites on the Internet.
- Google's use of advertising cookies (such as the DoubleClick DART cookie) enables it and its partners to serve ads to users based on their visits to this site and/or other sites across the web.
- Zero Connection to Secrets: Cookies contain only anonymous device identifiers or generic geographic preferences. They never contain and cannot access any 2FA secret keys, codes, or labels you input into the tool.
How to Manage or Opt Out of Personalized Advertising
You have the full right to opt out of personalized advertising at any time through official portals:
3. Standard Web Server Access Logs
Like virtually all web applications, when your browser requests static assets (such as HTML, CSS, or JS files), the server infrastructure automatically records standard HTTP access logs (including IP address, browser User-Agent, request timestamp, and HTTP status codes). These logs are utilized solely for network security defense, DDoS mitigation, and server health monitoring. They contain zero 2FA secrets and are rotated and purged on schedule.
4. Global User Privacy Rights (GDPR & CCPA/CPRA)
Under the European Union General Data Protection Regulation (GDPR) and California Consumer Privacy Act (CCPA/CPRA), users possess rights concerning data access, correction, deletion, and objection. Because this website requires no account registration, collects no personal identifiers (name, email, phone number), and preserves no user secrets on our servers, there is no server-side profile or identifiable personal database linked to any natural person.
5. Children's Online Privacy Protection
This website is a general security utility and does not knowingly target, solicit, or collect personal information from children under the age of 13 (or the legal threshold in your jurisdiction). Minors should learn two-factor authentication practices under guardian supervision.
6. Policy Amendments and Contact Channels
We may update this Privacy Policy periodically to reflect legal or advertising compliance updates. Changes take effect upon posting. If you have questions regarding this policy, feel free to contact our security team: