Join Nostr
2026-07-31 17:30:28 UTC

npub1v9…x9q3h on Nostr: Your signing device has one job: to protect your seed material from leakage during ...

Your signing device has one job: to protect your seed material from leakage during use. The ColdCard has not failed in this.

People were trusting their ColdCards for an additional job: generating entropy. That was the mistake.

It does not help that wallet manufacturers encourage using the devices for entropy generation. #Bitcoin
Coinkite had 1 job and it failed!