Bip39 Word List Numbers. Because of the cryptographic structure of BIP-39, a weak passphrase will not reduce the safety of another wallets or aid expose the seed words. Mnemonics are representation of entropy. Initial step requires making a decision regarding simply how much entropy you consider safe on your operations. https://webnowmedia.com/story4188835/ian-coleman-bip39-https-linktr-ee-bip39-5-easy-facts-about-bip39-generator-described