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Category: Your Money

A Five-Year-Old Firmware Bug Just Drained $89 Million From Bitcoin Cold Wallets

A cyberattack targeting Bitcoin cold wallets has expanded to 4,500 compromised addresses, with total losses approaching $89 million. Researchers at Galaxy Research identified a third wave of fund sweeps linked to weak cryptographic keys generated by Coldcard hardware wallets. The attacker has shifted tactics, now going after smaller account balances and altering how stolen funds are moved on the blockchain.