CAC Basics

CAC Security Training: What You Need to Know Annually That annual Cyber Awareness Challenge isn’t just a checkbox—it’s a condition of maintaining your CAC access....

DEERS, Dependent IDs, and CAC for Military Families Military families interact with CAC and DEERS systems differently than service members. Spouses, children, and other dependents...

Getting a Common Access Card (CAC) opens the door to secure DoD systems, military installations, and government networks. But before you can obtain this essential...

Your First DoD Smart Card: A Contractor’s CAC Guide You’ve been awarded a contract requiring DoD system access, and now you need a CAC. Unlike...

Your Military Service Ended, But CAC Access Doesn’t Have To Leaving active duty doesn’t mean losing all access to DoD systems and benefits. Retirees and...

Managing Two CAC Cards on One Computer You have your primary CAC and a second card—maybe you’re a contractor with multiple client organizations, or you...

Understanding CAC Certificate Updates Your CAC contains digital certificates that prove your identity to DoD websites and systems. These certificates are issued by the DoD...

Your CAC PIN is the key to your digital identity. Three wrong entries and you’re locked out, potentially unable to access email, systems, or even...

CAC Certificate Invalid or Expired: Renewal vs. Card Replacement Guide Seeing “certificate invalid” or “certificate expired” errors when using your CAC card can be confusing...

What Happens When Your CAC Card Expires? Your Common Access Card (CAC) expiration date isn’t just a formality—it’s a hard deadline that affects your ability...