Passwords are necessary, complex, shared, written down, forgotten, lost, and despised. What is legal, safe, and smart?
When you think about all of the accounts we have online and the number of information leaks, think about how often you reuse the same username or worse, password.
Think of a passphrase vault as being similar to a bank vault; only with the vault combination (passphrase) can you unlock the protected items inside (other passphrases).
The first and most common piece of security everyone is aware of and using is a password or hopefully a passphrase.