Bip39. Because of the cryptographic structure of BIP-39, a weak passphrase won't lessen the security of the other wallets or support reveal the seed words. Anyone else who discovers the phrase can steal the bitcoins. It should be saved magic formula, such as it must not be typed into any https://hyperbookmarks.com/story19013091/bip-39-https-linktr-ee-bip39-not-known-details-about-bip39-wallets