A vulnerability scanner is a software tool designed to identify security weaknesses in computer systems, networks, and applications. It scans for known vulnerabilities, misconfigurations, and outdated software that could be exploited by attackers. By regularly using a vulnerability scanner, organizations can proactively manage their security posture and reduce the risk of cyber threats. These scanners typically generate reports that detail the identified vulnerabilities, their severity, and recommended remediation steps. Common types of vulnerability scanners include network scanners, web application scanners, and database scanners, each focusing on specific areas of security. Organizations often use these tools as part of their overall cybersecurity strategy to protect sensitive data and maintain compliance with regulations.