Bip39 Tool. The passphrase isn't picked in the predefined list of 2048 words – it may be any word or phrase you choose. But obviously, the ultimate barrier is you. Your seed phrase is definitely the master key to your copyright wallet, so make sure you don’t hand it out. https://throbsocial.com/story21571969/bip39-wallets-https-linktr-ee-bip39-how-much-you-need-to-expect-you-ll-pay-for-a-good-ian-coleman-bip39