CyberGuard dictionary / Security Technologies
Vulnerability Scanner
A tool that checks systems for known weaknesses or misconfigurations within an authorized scope.
In simple terms
A scanner compares a system against checks for known security problems.
Technical explanation
Authenticated and unauthenticated scans provide different visibility, and findings need validation and prioritization.
A scanner identifies potential weaknesses based on available evidence; credentials and network reachability shape what it can see. False positives and missing assets require human validation.
Examples in practice
An IT team scans its own servers and confirms which missing patches apply.
A scan lists outdated software on a server. The administrator confirms the installed version, checks the vendor fix, patches it, and rescans to verify closure.
Why it matters
Regular authorized checks can identify repair work before a weakness is exploited.
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Sources and further reading
Published 2026-10-15 · Last updated 2026-10-15 · CyberGuard editorial content. Source links provide context; they do not imply endorsement.