Bip39 Password. Although it utilizes BIP32 strategy you may nevertheless import BIP39 seeds into Electrum wallet. Also apart from BIp32 You can find BIP44 Variation which some wallet use for that era of seeds. While hassle-free, storing your phrase digitally increases the chance of hacking. Physical storage is generally advisable. https://letsbookmarkit.com/story18639046/bip39-rust-the-single-best-strategy-to-use-for-seed-phrase-generator