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incident response

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Coldcard entropy flaw leaves affected wallets needing new seeds

Coinkite says seeds created on multiple Coldcard generations can contain substantially less randomness than expected. Fixed firmware prevents new weak seeds, but it cannot repair keys that already exist.

Aug 4, 20263 min read Security · Event

Coldcard seed-generation advisory and wallet migration

This file tracks the affected firmware, corrected releases, migration warning and promised technical review.

Jul 30, 20261 min read