Bip39 Ian Coleman. Because of the cryptographic design of BIP-39, a weak passphrase won't lessen the protection of the opposite wallets or help expose the seed words. Sure, BIP39 passphrases are situation-sensitive. Make sure you enter your passphrase particularly while you set it up, like any uppercase or lowercase letters. https://socialstrategie.com/story4370882/bip-39-https-linktr-ee-bip39-bip39-words-an-overview