Coldcard Firmware Forces User Entropy After $114M Seed Failure

The fix is forward-looking only, which is the crux: affected users cannot remediate by patching, since the flaw lives in seeds already generated, not in the software going forward. Mandating external entropy shifts responsibility onto the user at the moment of setup, a meaningful change for anyone provisioning hardware wallets on the assumption that device randomness alone suffices. The open question is how many seeds were created on the vulnerable versions and whether affected holders migrate to new wallets.