Bip39-Standalone. Because of the cryptographic layout of BIP-39, a weak passphrase does not lessen the protection of another wallets or support expose the seed words. Anyone else who discovers the phrase can steal the bitcoins. It needs to be stored top secret, one example is it should not be typed https://hubwebsites.com/story19924375/ian-coleman-bip39-https-linktr-ee-bip39-about-ian-coleman-bip39