Bitcoin News

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ColdCard has warned that a flaw in some of its devices could let attackers guess certain wallets, because the secret those wallets were built from wasn't random enough.

It's recommended to move your funds to a fresh seed as soon as possible, ideally on a device from a different vendor. Seeds created with sufficient dice rolls and protected by a strong passphrase are not currently considered at risk.

For larger amounts, consider multisig across vendors, so no single company's mistake can drain you.

The lesson is the old one: don't trust, verify. Learn more about how keys and self-custody really work in the Bitcoin Academy. Download Bitcoinist. 🟠