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What is a Common Access Card (CAC) ?

What is a Common Access Card (CAC) ?You should have a Common Access Card (CAC); if you are actively on duty as American personnel, you should have a Common Access Card (CAC).  Common Access Cards are made for identification purposes or for verifying the authenticity of a certain person so that they could connect and use DoD (Department of Defense) or AKO (Army Knowledge Online) facilities. Common Access Cards allow for cryptographic encryption and access to online webmail like AKO Webmail.

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A Common Access Card is about the size of a credit card. The card acts as a smart card and contains all your identification.

This Common Access Card has plenty of applications, such as physically allowing you to enter buildings, control network systems, and granting you access to your online AKO Webmail. It serves as your token for the PKI (Public Key Infrastructure). Lastly, this card is unique since it lets you sign your messages on your email and encrypt them at the same time digitally. Common Access Cards also allow many processes to be automated, such as allowing government personnel to check up on someone’s medical privileges.

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There is still some problems with Common Access Cards. Since CAC has a microchip, it is vulnerable to damage, so proper card maintenance is essential to avoid making it unusable.

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