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Gold bitcoins placed on laptop keyboards with digital financial graphs in the background.
NEWSJUL 31, 2026
Coldcard Hardware Wallet Flaw Drains 594 BTC in Rapid Bitcoin Theft
A flaw in Coldcard firmware key generation enabled an attacker to drain roughly 594 bitcoin, worth about $38 million, from around 500 single-signature wallets. Coinkite has warned users who created seeds on certain Mk3 devices, while early analysis suggests Mk4, Q and Mk5 devices are not affected so far.
BITCOINHARDWARE-WALLETCOLDCARD