Bip39 vs slip39 https://rylanmecp341.wpsuo.com/bip32-vs-bip39-which-is-better-for-your-copyright-demands Although it works by using BIP32 system you may even now import BIP39 seeds into Electrum wallet. Also apart from BIp32 There may be BIP44 Model which some wallet use with the era of seeds. The amount of safety does a passphrase increase? A BIP39 passphrase https://wildbookmarks.com/story20273795/bip39-generator-with-balance-not-known-factual-statements-about-bip39-mnemonic-https-www-youtube-com-channel-ucupxfytj0fb78sq55hu6ocw