Bip39 how it works https://files.fm/u/2eemhhak2q#design Mycelium - A cell wallet that supports BIP39 seed phrases and it has Superior functions for electric power users. Thanks to the cryptographic style and design of BIP-39, a weak passphrase will not reduce the protection of the other wallets or enable expose the seed https://cutt.ly/urYc5rW7