Bip39. It's very simple — if you don't be concerned about copyright inheritance, no one else will — not your software or hardware wallet vendors, not your exchanges, rather than your wealth administrators. Of course, BIP39 passphrases are scenario-delicate. Make sure to enter your passphrase specifically as you set it https://thebookmarkage.com/story19441975/bip39-passphrase-https-linktr-ee-bip39-top-guidelines-of-bip39-words