NIST-SC-18(4) Prevent Automatic Execution

Prevent the automatic execution of mobile code in [Assignment: software applications] and enforce [Assignment: actions] prior to executing the code.

Actions enforced before executing mobile code include prompting users prior to opening email attachments or clicking on web links. Preventing the automatic execution of mobile code includes disabling auto-execute features on system components that employ portable storage devices, such as compact discs, digital versatile discs, and universal serial bus devices.