Most existing seed-phrase backup solutions store the mnemonic in plaintext.Stainless-steel backups can indeed survive water, fire, earthquakes, and other disasters.
However, none of them can prevent
theft — if an outsider sees the plaintext seed phrase even once, the funds are gone immediately.
CipherSeed is designed specifically to solve this problem.
Instead of engraving the original BIP39 words or their index numbers, CipherSeed lets you create your own
private encoding table.
You convert the original index numbers into your own
cipher index numbers and engrave only those onto stainless-steel washers (or any metal backup medium).
The encoding table and the engraved cipher numbers are stored separately.As long as an attacker cannot obtain
both at the same time, your backup remains completely secure — even if someone physically sees or photographs the metal plate.
Your mnemonic stays protected from prying eyes.
For full details, refer to:
The Ultimate Guide to Ultra-Secure Crypto Wallet Backups