Passphrase

A passphrase is a password made of several words, such as copper lantern velvet orbit. Because it is long, it is very hard for attackers to crack, yet it is easier to remember and type than a short jumble of symbols. Current NIST guidance (SP 800-63B) emphasizes length over complexity and recommends at least 15 characters when a password is the only login step. The words should be chosen randomly, ideally by a password manager or by rolling dice against a word list. Avoid quotes, lyrics, names and anything linked to you. Passphrases are ideal for the few secrets you must memorize, like your password manager or computer login.