Luke Dashjr Publishes Nine Coldcard RNG Concerns

Bitcoin Core developer Luke Dashjr published nine concerns about the Coldcard hardware wallet's random number generator, pointing to a July code revision that he says weakened entropy handling. Coldcard responded that later firmware adds seed-error checks and a startup self-test for the hardware RNG. The dispute matters because the RNG underpins every seed phrase generated on the device, so any weakness could compromise wallet security for holders. Watch for independent reviews of the July change and whether Coldcard ships further firmware attestations or third-party audits.