Influential Dogecoin community member Mishaboar is urging DOGE holders to strengthen their wallet security following the Coldcard exploit, recognized as the third-largest crypto hack of 2026. The hack resulted in confirmed losses of 111 million dollars, with 1,719 BTC stolen from victims, potentially reaching 130 million dollars as some coins remain unconfirmed. A firmware bug from March 2021 weakened seed randomness on certain Coldcard wallets, reducing cryptographic strength from 128 bits to as little as 40 bits, making them vulnerable to brute-force attacks since July 30, 2026. Mishaboar recommends hardware wallets for long-term savings and warns against software wallets, stating their risks are impossible for ordinary users to assess.
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