By default, the FortiGate unit includes set number of three password retries, allowing the administrator a maximum of three attempts to log into their account before they are locked out for a set amount of time (by default, 60 seconds).

The number of attempts can be set to an alternate value, as well as the default wait time before the administrator can try to enter a password again. You can also change this to further sway would-be hackers. Both settings are must be configured with the CLI

For example, to set the lockout threshold to one attempt and a five minute duration before the administrator can try again to log in enter the commands”