When to Rotate a Metal Seed Backup
Signs that your stamped or engraved seed phrase plate needs replacement, and how to schedule rotation without exposing your words unnecessarily.
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Field notes on cold wallet custody, backup rotation, firmware updates, and maintenance decisions for offline asset holders in South Korea.
Firmware Updates on Air-Gapped Devices
A practical walkthrough of updating Coldcard and similar air-gapped hardware wallets without connecting to the internet — what to verify before and after.
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Documenting Custody for Family Members
What to include in a written custody summary so spouses and heirs can locate devices and backups without learning your seed phrase prematurely.
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