technology·18d ago
BIP461 Proposal Would Make ECDSA Signatures Reproducible
A newly flagged Bitcoin Improvement Proposal would let compliant ECDSA signatures be reproduced so deviations can be spotted without proving malicious firmware.
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bitcoin·57d ago
Coldcard firmware update requires 65 presses but cannot fix exposed seeds
Coldcard releases firmware 5.6.1 and 1.5.1Q to harden new wallets, but affected seeds still need to be moved.
bitcoin·57d ago
Coldcard firmware update adds 65-key-press protection for new wallets
Firmware 5.6.1 and 1.5.1Q harden wallet creation after seed exploit, but existing seeds remain exposed.
bitcoin·79d ago
Coldcard Security Notice Highlights Bitcoin Wallet Entropy Risk
A firmware flaw affecting seed generation puts hardware wallet entropy back under scrutiny.