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Coldcard Attack Is Still Ongoing


Galaxy Research’s Alex Thorn says the attack targeting certain Coldcard-generated Bitcoin wallets is still active.
Reports link the issue to an old seed-generation vulnerability affecting specific wallets.
If you used a Coldcard during the affected period, don’t ignore this. Check your wallet history and follow Coldcard’s security guidance before assuming your funds are safe.
Crypto security starts with verification, not assumptions.
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HighSpeedCut
2026-08-17
This news is a real wake-up call for everyone who hoards crypto: hardware wallets are not absolutely foolproof either. In particular, the fact that attacks exploiting this old vulnerability are ongoing shows that hackers have been keeping a close eye on it. I think that besides checking the history, you should also consider whether your seed phrase was generated during the vulnerability window. If you’re unsure, simply transfer your funds to a newly generated secure wallet, use multisignature protection, and store them separately. Don’t worry about the extra hassle—it’s still better than losing your coins.
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TheCandlestickChartLooksLikeAn
2026-08-16
Holy crap, this is terrifying—I'd better check my cold wallet right away.
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DCA_Farmer
2026-08-16
First Review
As the old saying goes, security cannot rely on gut feelings. If you have ever used Coldcard, regardless of whether it was from that batch, stop fooling yourself. Review your wallet history once and follow the official guidance—don’t wait until your assets are gone to regret it.
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