Bip39 Vs Slip39. Because of the cryptographic structure of BIP-39, a weak passphrase does not reduce the safety of another wallets or assistance expose the seed words. Entropy is an advanced characteristic. Your mnemonic might be insecure if this attribute is used incorrectly. Go through much more A BIP39 passphrase https://bookmarkshq.com/story20582777/bip39-mnemonic-https-linktr-ee-bip39-top-guidelines-of-bip39-passphrase