Coldcard Bitcoin Wallet Flaw Leads to Fourth Attack Wave

TLDR A fourth attack wave moved 448.7 Bitcoin from 709 suspected victim addresses, according to Galaxy Research. Combined losses across all four waves are estimated near 1,815 Bitcoin from 5,294 addresses. Coinkite traced the flaw to a 2021 firmware update that swapped its true random number generator for a weaker one. Kraken security chief Nick [...]

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