Hardware wallet maker Ledger is calling the Coldcard exploit a critical warning for the cryptocurrency industry, with Chief Technology Officer Charles Guillemet saying the incident exposes fu
Hardware wallet maker Ledger is calling the Coldcard exploit a critical warning for the cryptocurrency industry, with Chief Technology Officer Charles Guillemet saying the incident exposes fundamental weaknesses in how Bitcoin wallets generate cryptographic randomness and underscores how artificial intelligence is reshaping the threat landscape.
Last week, Coinkite, the maker of the Coldcard Bitcoin hardware wallet, disclosed a firmware flaw tracing back to a March 2021 build. The bug caused the device to rely on a software fallback instead of its dedicated hardware random number generator when creating wallet recovery seeds. That made some private keys guessable, allowing thieves to drain user Bitcoin holdings.
