Has Standard Notes completed a third-party security audit?

We've completed three (3) security audits to date by industry-leading security firms, which cover the entirety of our ecosystem. You can review the results below.

• Client-side Protocol and Encryption Security Assessment

  This audit covers the entirety of our shared client-side framework for encrypting and syncing data, and covers our usage of industry-leading algorithms like Argon2 and XChaCha20-Poly1305.

  Conducted by Trail of Bits, New York.

  View Report

• Full Ecosystem Penetration Test

  This extensive audit covered the entirety of our ecosystem, both client-side and server-side, with the aim of penetrating the code and executables to achieve unintended effects and discover latent vulnerabilities. We're happy to report that 100% of the issues found were promptly resolved.

  Conducted by Cure53, Berlin.

  View Report

• Cryptography Design Review

  This early audit helped ensure our initial client-side encryption and server-side communication systems were built correctly and strongly.

  Conducted by Shackle Labs, United States.

  View Report