$70 Million Gone in 40 Minutes: CZ Weighs in on Coldcard Fallout
Changpeng Zhao (CZ) has a warning for Bitcoin holders. Hardware wallets can fail too. He spoke days after a Coldcard firmware bug let thieves work out non-public keys and take $70 million. Researchers at Galaxy and Block tracked the theft. Attackers emptied 1,196 wallets in 41 minutes on July 30. Nobody touched a single gadget….
