🚨 Unprecedented attack on Coldcard Over $70 million in BTC was drained from 1,196 wallets in 41 minutes. A flaw in seed generation made private keys predictable. The attacker did not require physical access to the devices to carry out the theft. The security of cold storage is now in question. Users must verify firmware updates and the origin of their seeds. This incident underscores the critical importance of randomness in key generation.