Bip39 words https://atavi.com/share/xbwf7vz16jgof Even though it works by using BIP32 technique you could nonetheless import BIP39 seeds into Electrum wallet. Also in addition to BIp32 You can find BIP44 Variation which some wallet use to the technology of seeds. The amount of security does a passphrase add? A BIP39 passphrase https://peakbookmarks.com/story20898466/bip39-vs-bip44-bip39-compatible-wallet-can-be-fun-for-anyone-https-linktr-ee-bip39