This feature is only available in Professional and Enterprise Editions.
If enabled, the Password Strength Requirements setting will force all passwords entered within the Identity Finder application to be strong. The following options can be set:
Do Not Require Strong Passwords: Passwords can be any length and contain any characters.
Require Strong Passwords: Passwords must be at least six characters and contain at least one letter and one non-letter.
Require Stronger Passwords: Passwords must be at least eight characters and contain at least three of the following four types of characters:
Lowercase letters
Uppercase letters
Numbers
Symbols (i.e., !@#$%^&*:,./, etc.)

To view or change these settings, click the Settings button on the Tools and Options ribbon.