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Coldcard wallet flaw leads to $88M Bitcoin theft, raising security alarms.

Market News
02 Aug 2026
Dailycoin
View Source
Bearish
pluang ai news

A security flaw in Coldcard wallets, caused by weak randomness in seed phrase generation from a 2021 firmware update, has resulted in the theft of 1,367 BTC worth about $88.6 million. The vulnerability affects models Mk2 through Mk5 and has led to three waves of attacks, with attackers able to predict seed phrases and access funds. Users are advised to create new seeds with updated firmware or switch hardware, but even moving funds is risky due to potential interception by attackers. This breach highlights critical risks in wallet security amid Bitcoin trading near $63,000.

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