
A 2021 Firmware Flaw Drains 594 BTC From Coldcard Wallets
A build error in Coldcard firmware from March 2021 cut key strength from 128 bits to about 40, and an attacker swept 594 BTC out of some 500 wallets in 25 minutes.
Altcoins, ETH & general crypto

A build error in Coldcard firmware from March 2021 cut key strength from 128 bits to about 40, and an attacker swept 594 BTC out of some 500 wallets in 25 minutes.

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