Bip39. Realize the threats – forgetting the passphrase suggests getting rid of access to resources: It’s critical to recognize that forgetting/getting rid of your passphrase will lead to forever getting rid of usage of the related wallet along with the cash it has. Mnemonics are illustration of entropy. Starting point https://macrobookmarks.com/story18816152/bip39-https-linktr-ee-bip39-the-basic-principles-of-bip39-mnemonic