Hackers drain ~$86M in Bitcoin from Coinkite Coldcard cold wallets via software flaw

Published Aug 3, 06:12 AM UTC

Hackers have exploited a software flaw in Coinkite's Coldcard brand of 'cold' Bitcoin wallets, siphoning tens of millions of dollars in an ongoing attack. Approximately 1,367 Bitcoin tokens, valued at around US$86 million, have been drained from over 4,500 wallets. Cold wallets are typically considered the safest storage method for cryptocurrencies as they are not connected to the internet. This breach undermines that security assumption, highlighting vulnerabilities in hardware wallet software. The attack is ongoing, with funds continuing to be stolen. The incident raises significant concerns about the security of cryptocurrency storage solutions and the potential for large-scale theft even from offline systems.