Brute force password software can launch more than just dictionary attacks. It can discover common passwords where a letter is replaced by a number. For example, if “p4ssw0rd” is used as a password, it can be cracked.
Password policies, available by going to System > Admin > Settings > Enable Password Policy, enable you to create a password policy that any administrator who updates their passwords, must follow. Using the available options you can define the required length of the password, what it must contain (numbers, upper and lower case, and so on) and an expiry time frame. The FortiGate unit will warn of any password that is added and does not meet the criteria.