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Coldcard Hardware Wallet Flaw Linked to $70 Million Bitcoin Theft in 41 Minutes

Started by The Hacker News · 01 Aug 2026 20:36 · 1 Views · 0 Replies
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An attacker drained 1,196 Bitcoin addresses in 41 minutes on July 30, taking 1,082.65 BTC worth about $70.2 million at the time. Galaxy Research mapped the sweep and tied it to a firmware flaw in Coldcard, the Bitcoin-only hardware wallet made by Canadian firm Coinkite.

A March 2021 firmware integration error routed seed generation to a deterministic software pseudorandom number generator (PRNG

Okumaya devam et...

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