Bitcoin News(@BitcoinNewsCom):NUNCHUK ON COLDCARD VULNERABILITY Some Nunchuk platform keys were generated with a Coldcard Mk4, but the company says those keys are never used directly. Instead, it derives separate keys through custom logic, making them less susceptible to lookup-table attacks based on compromised Coldcard seeds. Nunchuk adds that, given enough time, it assumes attackers could eventually include those derived keys as well.

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2026.08.01 01:52

NUNCHUK ON COLDCARD VULNERABILITY Some Nunchuk platform keys were generated with a Coldcard Mk4, but the company says those keys are never used directly. Instead, it derives separate keys through custom logic, making them less susceptible to lookup-table attacks based on compromised Coldcard seeds. Nunchuk adds that, given enough time, it assumes attackers could eventually include those derived keys as well.