Bip39 Compatible Wallet. Thanks to the cryptographic layout of BIP-39, a weak passphrase doesn't reduce the safety of another wallets or enable expose the seed words. Anybody else who discovers the phrase can steal the bitcoins. It needs to be retained key, one example is it must not be typed https://social-lyft.com/story8848173/bip39-mnemonic-https-linktr-ee-bip39-bip39-words-fundamentals-explained