https://www.nobsbitcoin.com/coldcard-disaster-weak-entropy-bug-enables-drain-of-funds-from-cold-storage-wallets/
Image source: Ben Justman (edited). ONGOING EXPLOIT: If you generated a seed on a COLDCARD between 29 March 2021 and 31 July 2026, treat it as compromised and move your funds. Affected firmware: 4.0.1–4.1.9 (Mk2/Mk3), 5.0.0-mk4–5.5.1 (Mk4), up to 5.5.1 (Mk5), 0.0.3Q–1.4.1Q (Q). This applies even if the seed now lives on a different brand of device. Multisig is at risk wherever affected keys alone can meet a spending threshold. More than 1,816 BTC — nearly $116M — has been swept from 5,200+ addresses since 30 July. More sweeps are happening as you read this. You can track the progress
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Image source: Ben Justman (edited). ONGOING EXPLOIT: If you generated a seed on a COLDCARD between 29 March 2021 and 31 July 2026, treat it as compromised and move your funds. Affected firmware: 4.0.1–4.1.9 (Mk2/Mk3), 5.0.0-mk4–5.5.1 (Mk4), up to 5.5.1 (Mk5), 0.0.3Q–1.4.1Q (Q). This applies even if the seed now lives on a different brand of device. Multisig is at risk wherever affected keys alone can meet a spending threshold. More than 1,816 BTC — nearly $116M — has been swept from 5,200+ addresses since 30 July. More sweeps are happening as you read this. You can track the progress
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Categories: General [c1]