Cryptocurrency wallet security
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X @CoinMarketCap
CoinMarketCap· 2026-07-31 17:35
LATEST: 🚨 Coinkite issued a security advisory for COLDCARD Mk3 users after a firmware bug dating to March 2021 allowed attackers to drain 594 BTC from 500 wallets in 25 minutes. https://t.co/nCKy2ABjsq ...
X @Wendy O
Wendy O· 2026-07-31 14:00
LATEST: 🚨 A Coldcard Mk3 seed-generation flaw reportedly exposed around 500 wallets, leading to the theft of 594 $BTC worth roughly $38M ...
X @Wu Blockchain
Wu Blockchain· 2026-07-31 13:44
Galaxy Research said 1,196 wallets were fully drained of 1,082.65 BTC (about $70.2 million) within a 41-minute window on July 30, around 30 hours before Coinkite publicly disclosed the Coldcard Mk3 vulnerability. According to the analysis, every transaction used an identical 30 sat/vB fee and produced no change output, suggesting an automated tool was sweeping compromised private keys rather than user-initiated transfers. The stolen funds were consolidated into four addresses and have remained unmoved since ...