On November 19, 2025, the independent company Trail of Bits completed the first fully public audit of the Bitcoin Core software (version 28.0). The project was funded by the community through the Bitcoin Dev Fund and lasted 14 months. Key findings of the audit: 63 vulnerabilities were identified, of which only 3 were classified as 'high risk', the rest were medium and low.
None of the critical vulnerabilities allowed for remote code execution or theft of bitcoins.
Confirmed the absence of backdoors and hidden mechanisms that have been rumored for years.
The most serious problem is the potential DoS vector in the P2P module, already fixed in version 28.1.
Bitcoin Core developers noted the highest level of code quality among all open projects audited by Trail of Bits. "This is the most reliable software we have seen in 10 years of practice," said the audit lead. The community celebrates: "Bitcoin has once again proven that it can be trusted at the state level." Similar audits are now planned for Lightning Network and Taproot.
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