What is the primary function of a vulnerability scanner?

The primary function of a vulnerability scanner is to check systems for weaknesses. Vulnerability scanners are designed to systematically assess computers, networks, and applications for known vulnerabilities by comparing the system's configuration and software against a database of known security issues. This process allows organizations to identify potential security flaws, misconfigurations, and outdated software that could be exploited by attackers. By identifying these weaknesses, organizations can take proactive measures to remediate vulnerabilities before they can be exploited, thereby enhancing their overall security posture.

Simulating real-world attacks, performing penetration tests, and monitoring network traffic are all related to security but serve different purposes. Simulation and penetration testing involve actively exploiting vulnerabilities to demonstrate potential impacts, while monitoring network traffic focuses on observing and analyzing data flows for anomalies or signs of malicious activity, rather than systematically identifying vulnerabilities.