Coldcard firmware update urges new seed phrases

The notable point is that Coinkite is treating the flaw as unfixable for already-generated seeds: a firmware patch cannot retroactively harden entropy that was created under weaker conditions. That places the remediation burden on existing Coldcard owners, who face the friction of migrating to freshly generated seed phrases and moving funds, rather than a simple update. Whether the strengthened generation closes the underlying issue for new devices, and how quickly the installed base rotates its seeds, is the open question worth watching.