Password Settings allow you set security requirements for the platform's passwords. To access Password Settings, go to Admin > Registration > Password Settings. Consult your IT or network security admin on their requirements before changing these settings. Make sure to click Save Changes (bottom of the page) after changing any settings.
The Requirements setting lets you set the minimum password requirements for your platform.
The Expiration setting lets you set if and when your platform's passwords expire.
You can also set the number of attempts a member has before they're locked out.