What is the focus of a vulnerability scanner like Nessus?

A vulnerability scanner like Nessus is specifically designed to identify security weaknesses within systems, networks, and applications. Its primary function is to scan for various vulnerabilities, such as outdated software versions, missing patches, and misconfigurations that could be exploited by attackers. By running these scans, Nessus helps organizations understand their security posture and prioritize remediation efforts for vulnerabilities that could lead to breaches or threats.

The emphasis on identifying security weaknesses differentiates it from other tools or practices that might be focused on compliance, configuration management, or user behavior. Thus, its role is crucial in proactively managing security risks and ensuring that necessary measures are taken to protect the organization's assets.