Bip39 Mnemonic. Don't forget, there isn't any these types of point like a “Improper” passphrase. Every single unique passphrase you enter is actually a totally new wallet. Be cautious when recovering your seed using a passphrase. BIP39 specifies a list of 2048 words from which the mnemonic phrase is selected. https://fellowfavorite.com/story19787823/bip-39-https-linktr-ee-bip39-how-much-you-need-to-expect-you-ll-pay-for-a-good-bip39-wallets