Seed Phrase Encryption

Seed Phrase Encryption is the practice of adding a layer of protection to a mnemonic seed phrase, usually through a passphrase or password, to prevent unauthorized access even if the physical backup is discovered. While the seed phrase is the master key, the passphrase acts as a second factor that is never stored on the device itself.

This means that even if an attacker finds the seed phrase, they cannot access the funds without the passphrase. This is an effective way to mitigate the risk of physical theft or loss of the seed phrase.

However, if the user forgets the passphrase, the funds are permanently lost, as there is no recovery mechanism. It requires a balance between security and the ability of the user to remember or safely store the passphrase.