This Coldcard seed vulnerability had NOTHING to do with AI. And EVERYTHING to do with NEGLIGENCE.
Let’s kill the distraction narrative right now.
For 5 years, Coinkite’s most critical path — the code that generates the keys protecting your money — silently fell back to a non-cryptographic PRNG instead of failing closed.
That is not an AI problem. That is not a sophisticated attack. That is a basic secure-design rule violated.
Fail Closed. Always.
Every security engineer learns this in week one:
When a security-critical path cannot be verified, the system STOPS. It throws an error. It refuses to run.
It does NOT quietly substitute something weaker and carry on as if nothing happened.
Coldcard’s seed generator did the exact opposite. The crypto RNG could not be verified — so the code swapped in a non-cryptographic generator and kept producing seeds.
For five years.
The Excuse Nobody Should Accept
“The code was open source, we have to assume someone used AI to review previous versions.”
That is Coinkite’s own framing. It’s a deflection. It moves the blame to “the attackers used AI” when the actual story is much simpler:
Coinkite shipped a security-critical fallback that failed open, for half a decade, and nobody at the company caught it.
AI did not write the fallback. AI did not hide it from review. Coinkite’s own engineers wrote it, shipped it, and didn’t verify it.
What “Fail Open” Means For You
When your seed was generated on affected firmware, the “randomness” was not actually random in the cryptographic sense. It came from a predictable source.
Predictable keys are the one thing a hardware wallet must never produce. It’s the entire job. One job.
A company that cannot verify its own entropy source — for five years — has no business holding anyone’s keys.
The Timeline Is Worse Than The Bug
This wasn’t a one-day mistake caught by a code review.
This was introduced in a rewrite, survived every release, every test, every review, for half a decade. Either nobody looked, or nobody understood what they were looking at.
Both options are disqualifying for a hardware wallet company.
The Verdict
Do not let the AI narrative launder this.
The Coldcard bug is not a story about clever attackers. It is a story about negligence — a company that let its most critical code path go unverified for 5 years.
If you hold a Coldcard: your trust was misplaced. Migrate your funds. Generate fresh seeds on hardware that fails closed.
A company that can’t verify its own entropy source has no business holding anyone’s keys.