COLDCARD wallet RNG flaw likely linked to $88 million Bitcoin theft

COLDCARD hardware wallet firmware contained an RNG integration flaw that caused wallets to use predictable software-based key generation instead of hardware randomization. Attackers exploited this to reconstruct wallet seeds offline and steal approximately $88.6 million in Bitcoin from affected users. Any organization or individual using COLDCARD wallets is at risk of fund theft if they generated keys during the vulnerable firmware window.