Bip39 Checksum. Push X to abort passphrase software and hold modifying the passphrase. Choosing Terminate after an abort will halt the procedure. In case you had been to reveal your seed phrase less than duress, your hidden wallets would remain protected and unfamiliar. Security in opposition to seed phrase theft: https://socialbuzztoday.com/story4891248/bip39-wallet-https-linktr-ee-bip39-5-simple-statements-about-bip39-mnemonic-explained