Coldcard hack losses surpass $115 million due to critical firmware flaw

Coldcard hack losses have officially exceeded $115 million following a critical firmware vulnerability in one of Bitcoin’s most popular hardware wallets. According to the latest figures from Galaxy Research, the ongoing theft from Coldcard devices, which began on July 30, 2026, stems from a long-dormant bug in products made by the Canadian company Coinkite.The exploit has shaken confidence in a device long considered a bastion of secure self-custody. Galaxy’s investigation suggests t