Crypto Security Alert: Coldcard Firmware Flaw Exploited as Bitcoin Sweeps Pass $114 Million
August 21, 2026
Exploiting a 2021 firmware flaw that compromised seed phrase randomness, attackers have drained over 1,800 BTC from Coldcard hardware wallets, pushing total losses past $114 million across multiple attack waves.
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Devastating Coldcard Vulnerability Triggers $114 Million Loss for Devoted Bitcoin Self-Custody Investors
August 21, 2026
A major security vulnerability in Coldcard hardware wallets has resulted in over $114 million stolen from self-custody Bitcoin holders who followed strict offline security protocols.
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