Updating a vulnerability scanner

A vulnerability scanner is a software tool, that finds weaknesses in software or configuration.​

It is one of the tasks that need to be performed by a person who performs security scans, that scanning software and scan definitions need to be updated on regular basis. Preferably these updates are applied before the scan is executed.

If scanning software is not updated, than incorrect results will be provided, Updating a security scanner will ensure that the latest functionality is being used, and bugs that were found before are fixed. Doing it does not guarantee that new bugs had been introduced.

Plugins or scan definitions need to be updated too. Preferably you want to perform a security scans with latest scan definitions, because latest definitions will inform about latest security issues that had been added to the security scanner.

Please be aware that latest security definitions may also provide incorrect information. Likely security definitions had been tested well enough that they will not report false positives or negatives.

The last terms explain incorrect information that is reported. I will explain what these terms mean separately.

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