Password Management Passphrase Guidelines Length/History Must be at least 10 characters long and cannot be one of the last 6 passphrases used. Complexity Must contain characters from at least three of the following four categories: English uppercase characters (A - Z) English lowercase characters (a - z) Base 10 digits (0 - 9) Non-alphanumeric (*, %, +) Dictionary Passphrases cannot contain easily guessable words such as "Berea", "Fall 2016", or "Password", and they cannot contain the user display name or username. Patterns Passphrases cannot contain character patterns like "abcde", horizontal keyboard patterns like "qwerty", repeating patterns like "passwordpassword", or repeating characters like "aa". Expiration Network passphrases expire every 120 days. Character Restrictions If you use Nolij, your passphrase cannot contain the @ symbol. Otherwise, your passphrase can include any special characters.