🛡️ We hired hackers to break Stalwart. They found two DoS vulnerabilities. We patched them in hours. Your mail server is now harder to crack than ever. See what they found at https://stalw.art/blog/security-audit-2025
Security at the Core: Stalwart completes Second Security Audit | Stalwart Labs
At Stalwart Labs, security is at the heart of everything we build. As part of our ongoing commitment to delivering a trustworthy email and collaboration server, we recently completed our second independent security audit, conducted by Radically Open Security. Our previous audit took place exactly two years ago, in 2023 — and with significant changes to our codebase since then, a fresh and thorough assessment was essential.