Check the current advisory first

A model name alone is not enough to classify a seed. Use the COLDCARD security status page for the current affected scope, standard and Edge tracks, and migration conditions. The manufacturer includes later models as well as legacy hardware. Installing a corrected release does not retroactively change the seed that already controls an address.

Write down a non-secret history

Record the model, the firmware or approximate setup date, whether the seed was generated on this device or imported, and which documented entropy workflow was used. Do not publish serial numbers, extended public keys, addresses linked to your identity, dice sequences, seed words or passphrases as part of that enquiry. If you cannot reconstruct the history reliably, ask official support how the uncertainty affects the migration guidance. A newly purchased replacement device does not by itself create a new wallet when the old seed is restored.

Separate the advisory from your own assumptions

Use the manufacturer’s exact conditions for any exception. “I used some dice” is not a sufficiently detailed record, and the absence of a theft so far is not evidence that a seed is safe. Avoid copying an old firmware number from a search result as if it were today’s recommended release. Follow the linked migration guide if the advisory applies. Keep a record of what was verified and when, so another person does not later follow an obsolete plan.

After the wallet decision

Review any instructions that mention the old wallet, backup location, coordinator or recovery contact. Clearly distinguish retired information from the current handoff. Do not destroy a backup merely because this article suggests reviewing it: first establish what accounts, historical records or other assets still depend on it. An authorised recipient needs an accurate map and appropriate help, not a compressed incident headline.

Prepare the instructions your person would need

Keep wallet seed words and master passwords out of a general handoff message. Start with a non-secret inventory, document locations and a person to contact. ZeroLatch is an online conditional delivery service: check-ins keep a delivery on hold, and a missed deadline plus the safety period can make it eligible for release. Recipient access also depends on verification and service availability. Simple uses service-managed key recovery; Private requires a separate secret. Neither mode guarantees a financial or legal outcome.

Save the free handoff checklist, or try a fictional delivery without signup. The sample uses no real wallet data.