2.3.2 Secure screen saver corners - top left corner

Information

Hot Corners can be configured to disable the screen saver by moving the mouse cursor to a corner of the screen.

Rationale:

Setting a hot corner to disable the screen saver poses a potential security risk since an unauthorized person could use this to bypass the login screen and gain access to the system.

Solution

Perform the following to implement the prescribed state:

Open System Preferences

Select Mission Control

Select Hot Corners

Remove any corners which are set to Disable Screen Saver

See Also

https://workbench.cisecurity.org/files/3092

Item Details

Category: ACCESS CONTROL

References: 800-53|AC-11a.

Plugin: Unix

Control ID: 4e6ed6561c511d3705fc2f7cf4951f89136d10d3686144cc7e5662265b7f2602