Coinkite Warns Coldcard Mk3 Owners After Reports of $38M Bitcoin Loss – Bitcoin News
Key Takeaways Coinkite issued a security advisory for Coldcard Mk3 users on July 30, 2026. Reports show about 594 BTC, near $38 million, left roughly 500 dormant wallets. Coinkite’s advisory covers Mk3 firmware 4.0.1 through 5.0.3, its final supported release. Hardware wallet incidents rarely unfold as isolated events. When long-dormant addresses begin moving in a…
