Information
Password hints are user-created text displayed when an incorrect password is used for an account.
Rationale:
Password hints make it easier for unauthorized persons to gain access to systems by providing information to anyone that the user provided to assist in remembering the password. This info could include the password itself or other information that might be readily discerned with basic knowledge of the end user.
Impact:
The user can set the hint to any value including the password itself or clues that allow trivial social engineering attacks.
Solution
Perform the to disable password hints from being shown:
Graphical Method:
Open System Preferences
Select Users & Groups
Select Login Options
Uncheck Show password hints
Terminal Method:
Run the following command to disable password hints:
$ sudo /usr/bin/defaults write /Library/Preferences/com.apple.loginwindow RetriesUntilHint -int 0
Profile Method:
Create or edit a configuration profile with the PayLoadType of com.apple.mobiledevice.passwordpolicy
Add the key RetriesUntilHint
Set the key to <integer>0</integer>
Item Details
Category: CONFIGURATION MANAGEMENT, SYSTEM AND SERVICES ACQUISITION
References: 800-53|CM-1, 800-53|CM-2, 800-53|CM-6, 800-53|CM-7, 800-53|CM-7(1), 800-53|CM-9, 800-53|SA-3, 800-53|SA-8, 800-53|SA-10, CSCv7|5.1
Control ID: 55b4c3bebc9da4d544390d6948a2ca75f90d86acbe87d2893445387099acc6c9