EMERGENCY BITCOIN UPDATE: Coldcard Attack Explained | Rob Hamilton
By Danny Knowles
Aired Jul 31, 2026 · 42m · Last boosted 1h ago
Chapters
Show Notes
“This is as code red as it can get for Bitcoin self-custody.” Rob Hamilton joins me for an emergency episode on the catastrophic Coldcard entropy bug that has exposed Bitcoin held in wallets generated on affected firmware. A firmware change introduced in 2021 prevented Coldcard devices from generating the level of randomness users believed they were getting. The result is that attackers may be able to reconstruct seed phrases and drain wallets, even when the device was air-gapped and the seed words never touched the internet. Rob explains which Coldcard models and setups are at risk, why...
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Episode Boosts
Every boost sent to this episode, as published to Nostr, newest first.
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Thanks for doing this Danny!
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Probably the most helpful recap I’ve seen so far. Scary times in Bitcoin
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Thank you. My Coldcard Q was the "mother" to all my other wallets and had seedfraces from the Q, luckily with passwords. Every sats is now mowed, and I'm good
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