This development came after Coinkite announced an entropy flaw in older firmware versions used to generate seed phrases and urged affected users to move their assets quickly. The flaw lies in how certain Coldcard firmware versions generated seed phrases with lower-than-required randomness, allowing an attacker to narrow the wallet brute-force search space significantly. Coinkite Explains the Entropy FlawCoinkite, the company behind Coldcard, stated that the flaw lies in how certain firmware versions generated wallet seed phrases. What Users Should Do NowCoinkite recommends that users first check whether their current seed was created on an affected Coldcard firmware version. After generating a new seed, users must transfer their assets away from addresses derived from the old seed.