Video Description
LIVE 🔴 – COLDCARD Mk3 Security Advisory – Urgent Warning from Coinkite (July 30, 2026)Out of an abundance of caution, Coinkite is warning all users who generated a seed on a COLDCARD Mk3 running firmware version 4.0.1 (March 2021) or any later version: your funds may be at risk.The issue affects Mk3 devices through the final firmware release that supported them (5.0.3).Mk4, Q, and Mk5 are not affected based on Coinkite’s early analysis.Key PointsIf you used a BIP-39 passphrase with the affected seed, early analysis indicates your funds are at minimal risk. Protect that passphrase carefully and never enter it on a website or untrusted device. (This is the BIP-39 passphrase, not the COLDCARD PIN.)
Investigation is ongoing. A formal technical review will be released as soon as...
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