Bip39 Vs Slip39. Because of the cryptographic layout of BIP-39, a weak passphrase doesn't reduce the safety of the opposite wallets or assist reveal the seed words. Yes, BIP39 passphrases are circumstance-sensitive. Be sure to enter your passphrase just while you set it up, like any uppercase or lowercase letters. https://bookmarkunit.com/story18940836/bip39-word-list-pdf-https-linktr-ee-bip39-bip39-words-an-overview