Coldcard Bitcoin Theft Hits $88.6M as Third Attack Wave Emerges

TLDR: Galaxy Research links 1,367.05 BTC across 4,585 addresses to suspected thefts tied to Coldcard seeds. A third attack cluster added 207.7294 BTC, lifting estimated losses far above the first $38 million figure. The flaw weakened seed randomness, leaving wallets vulnerable despite air-gapped storage and offline backups. Firmware fixes protect new seeds, but users must [...]

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