Legacy cybersecurity systems

As noted in our discussion of the creation of the first worm and the first antivirus, cybersecurity was initially designed as a response to a cyber threat. Legacy systems were built to secure organizations from known threats. After the discovery of a cyber threat, security experts would learn its unique execution or coding patterns. This information would be used to enable security systems to detect and stop the identified cyber threat. This tradition still continues up to the present day. There is a famed database known as Common Vulnerabilities and Exposures (CVE), where all the discovered threats are explained and a unique identification number is given to them.

Signature-based security systems

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