Firmware

Cybersecurity 14 min The Coldcard Entropy Failure Was a Build-Configuration Bug, Not a Cryptography Bug A macro was defined and set to zero. One guard tested whether it existed rather than what it held, the linker... CY Cyber Team 2 Aug Cybersecurity 6 min Attackers Sweep 1,367 Bitcoin From Coldcard Wallets After Five-Year Firmware Flaw Three waves of automated sweeps have taken about $89 million in bitcoin from 4,585 addresses since 30 July. Th... CY Cyber Team 2 Aug