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A Coldcard Firmware Bug Drained 1,082 Bitcoin Before Anyone Noticed

calendar_today August 2, 2026 person coinpaprika domain coinpaprika

A firmware vulnerability in Coldcard hardware wallets let attackers drain 1,082.65 Bitcoin, worth about $70.2 million, from nearly 1,200 addresses. Galaxy Research traced the coordinated sweep to a single attacker exploiting weak seed generation.

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