Coldcard crisis hits $130 million – proving ‘not your keys’ is meaningless if you trust a single device to generate them

- Coldcard’s $130M meltdown proves “not your keys” is a lie if you trust one device to roll the dice. A firmware bug turned hardware wallets into predictable slot machines, collapsing entropy from 128 bits to a searchable joke. You can’t air-gap your way out of bad math. Even multisig fails if all cosigners share the same defective RNG—concentration is the real vulnerability. Coinkite’s patch only saves new seeds; old ones are toast. If you didn’t use a BIP-39 passphrase or roll 50 private dice, your stack-eye is exposed. This isn’t just a bug; it’s a reminder that security relies on assumptions, not marketing. Stop treating single-point devices as holy grails. Verify your randomness sources, or watch your hash manifest burn.