Coldcard crisis hits $130 million – proving ‘not your keys’ is meaningless if you trust a single device to generate them
Block’s Bitcoin Engineering and Security staff and impartial Bitcoin Core builders have traced the latest batch of Coinkite Coldcard pockets losses to a particular firmware defect that uncovered a hidden weak spot in Bitcoin self-custody earlier than any consumer touched a seed phrase. The bug diverted the device’s random-number technology from its STM32 {hardware} supply…
