Bitcoin has passed it's first ever public third-party security audit.
https://bitcoinist.com/bitcoin-core-first-ever-third-party-security-audit/
"On findings, the result is unusually clear. Brink reported that “the auditors at Quarkslab reported no critical, high, or medium-severity issues. They identified two low-severity findings and thirteen informational recommendations, none of which were classified as security vulnerabilities under Core’s criteria.” That framing is deliberate: the issues are treated as hardening and quality improvements rather than vulnerabilities that could directly endanger funds or consensus."