CAC (Common Access Card)

The Common Access Card (CAC) is a smart card used by the U.S. Department of Defense. It serves multiple purposes, allowing military personnel, government employees, and some contractors to access secure facilities and computer systems. The CAC contains personal identification information and security features, enabling secure login and authentication. It also facilitates encrypted communication and provides access to services such as healthcare and financial benefits. The card enhances security and ensures that only authorized individuals can access sensitive government resources.