Signal Security Acknowledgments

Signal publishes this page to acknowledge and thank those who reported potential security vulnerabilities in our software. Credit is added after the issue has been identified and addressed.

Acknowledgments are listed in reverse chronological order, with the most recent at the top. Acknowledgments prior to September 2025 can be found in the commit history of Signal's various repositories.

Reporting a Vulnerability

If you believe you have found a security vulnerability in Signal, please share it with us at [email protected].

Acknowledgments

September 2025