| #003 · 2026-08-07 · Detected 10 hot signals this week · View in browser | |||
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● Crypto · Strongest signal this week Coldcard Mk3 Flaw Spurs Probe of $38 Million Bitcoin TransferColdcard Mk3, a hardware wallet made by Coinkite, is designed to keep bitcoin signing keys offline and beyond the reach of internet-based attackers. Coinkite has warned that seed phrases generated by certain firmware versions could leave funds exposed, urging customers to migrate assets to newly secured wallets. Because a failure in seed generation can defeat the physical isolation that makes such devices trusted, the flaw reaches beyond retail holders into institutional storage arrangements built on self-custody. As of Aug. 7, 2026, security researchers were tracing an anomalous transfer of 594.48 bitcoin, worth about $38 million, though investigators have not established that it was directly caused by the Mk3 flaw. Subsequent reports said 4,585 wallets had been drained and put broader losses near $130 million, with estimates varying; Galaxy said at least 15 attackers exploited the weakness. Hackers moved 64 bitcoin and 200 ether to cryptocurrency mixers. Coinkite urged Mk3 users to move funds as exploitation continued, deepening scrutiny of cryptocurrency custody controls. 46 reports · 10 sources |
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● Crypto
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● Fintech
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● AI
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