Community Trust ScoreVerified 88 % Real Verified 26 votesBlockchain investigator ZachXBT won’t touch the Coldcard case. It started with a firmware flaw inside Coldcard Mk3 hardware wallets made by Coinkite. So customers who thought they were buying hardware wallets with some degree of privacy found out they weren’t. Hardware wallets are supposed to be the gold standard for self-custody — the whole pitch is that you control your own keys and your own privacy. The firm has been tracking the attacker’s movements and putting out updates on where the stolen BTC is going.