Users Point Out Coldcard is Open Source, but Lacks Code Security Verification Leading to Incidents

Social media users have pointed out that while the Coldcard hardware wallet meets four open-source standards—source code disclosure, compilability, reproducibility, and firmware signature verification—no one, aside from hackers, has actually verified the security of the code.

This phenomenon reflects the "verification paradox" in the open-source hardware field: technical transparency does not equate to security transparency, and users rely on brand reputation rather than independent audits.

The underlying reason is that the cost of verification is high and the professional threshold is extremely steep, leading both ordinary users and institutions to choose to "trust default configurations" until firmware vulnerabilities cause financial losses, triggering post-incident reviews.

Source: Public Information