Updated: 11/13/2018 by Computer Hope

A cert may refer to any of the following:

Department of Homeland Security (DHS) logo

1. Short for Computer Emergency Response Team, US-CERT is an arm of the NCSD (National Cyber Security Division) designed to help protect the nation's Internet infrastructure.


The US-CERT Twitter account is a great Twitter account of follow and have notifications sent to your smartphone to keep you up-to-date with cybersecurity.

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2. Cert is used as an abbreviation for certificate, certified, or certification. For instance, "The public key cert of the web server is misconfigured, resulting in an error." Or, "She received her CCNA cert today. Now that she is certified, she is due for a promotion."

Computer abbreviations, DHS, Security terms