CASE STUDY | Why This Cold Wallet Exploit Exposes a Big Bitcoin Hardware Security Vulnerability The theft of more than 1,000 BTC worth about $70 million from vulnerable Coldcard Bitcoin wallets marks one of the most significant hardware wallet compromises to date because attackers never needed physical access to the devices or users’ recovery phrases. Researchers now estimate that 1,082.65 BTC was stolen from 1,196 wallets in a coordinated sweep that lasted just 41 minutes on July 30, nearly doubling the initial estimate of 594 BTC. Deep dive: https://t.co/im0PmSsApz #BitcoinHack #CryptoPrecedent #BitcoinPrecedent #BitKECaseStudy
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