Coldcard just dropped a major firmware update to beef up seed phrase security—mixing user input with internal randomness to make private keys nearly impossible to crack, even if part of the system fails. This fix addresses a 2021 bug that weakened randomness on some wallets, leaving them vulnerable to brute-force attacks. Coinkite warns users: old seed phrases remain unsafe—create new ones before moving funds. The update also adds stronger USB, transaction signing, and RNG safeguards. Meanwhile, Coinspect’s free tool Unlukey helps spot risky old wallet addresses—showing the whole crypto community is racing to close these security gaps.
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