Problem Statement
What is a vulnerability scanner and how is it used in system security?
Explanation
A vulnerability scanner is a tool that automatically inspects computers, networks or applications for known security weaknesses — missing patches, mis-configurations, open ports. Using such scanners helps organisations identify risk before attackers exploit it. For example, scanning externally facing servers for open services and then remediating issues. Understanding how to run, interpret and prioritise scanner findings is a valuable system-security skill.
