Coldcard urges urgent bitcoin move as exploit drains $114M

Coldcard wallet developers urge affected users to urgently move bitcoin as an ongoing exploit has drained up to $114 million from self-custodied wallets. The flaw affects Mk3 devices on firmware 4.0.1 or later and Mk4, Mk5, and Q devices on older firmware, while dice-roll wallets are safe. Bitcoin traded near $63,800.