Bip39 mnemonic seed phrase https://telegra.ph/Producing-Custom-Bitcoin-Addresses-A-Take-A-Look-At-BIP39-Strategies-06-28 Although it uses BIP32 system you could still import BIP39 seeds into Electrum wallet. Also other than BIp32 There may be BIP44 Variation which some wallet use for the generation of seeds. Due to the cryptographic design and style of BIP-39, a weak passphrase does https://tripsbookmarks.com/story20037253/bip39-to-bip32-not-known-factual-statements-about-bip39-mnemonic-https-t-me-bip39-chat