Please do not open a public GitHub issue for security vulnerabilities. A public report tells everyone — including potential attackers — about the issue before it's fixed.
- Go to the repo's Security tab → Report a vulnerability
- Fill in the form — only the maintainers will see it
- We'll work with you privately and credit you in the fix
Direct link: Report a vulnerability
If you can't use GitHub's reporter, email hello@altersend.com with:
- Description of the vulnerability
- Steps to reproduce
- Potential impact
- Any suggested fix
- Acknowledgement within 48 hours
- Targeted fix within 14 days for critical issues
- A coordinated disclosure timeline if the fix requires more time
- Credit in the release notes (unless you prefer to stay anonymous)
In scope:
- The desktop app (Electron) in
apps/desktop - The mobile app (React Native / Expo) in
apps/mobile - The shared protocol/state packages in
packages/
Out of scope:
- Vulnerabilities in third-party dependencies — please report those upstream
- Issues that require physical access to an unlocked device
- Social engineering of users