What is a Vulnerability Scan?
A vulnerability scan is an automated security assessment that systematically examines a website, server, or application for known security weaknesses, misconfigurations, and outdated software that could be exploited by attackers.
How Does Vulnerability Scan Work?
Vulnerability scanners work by probing a target system against a database of known security flaws, testing for issues like SQL injection, cross-site scripting (XSS), insecure file permissions, and outdated software versions. The scan produces a report that categorizes each discovered vulnerability by severity level and often provides remediation guidance. These scans can be run on demand or scheduled to run at regular intervals.
Regular vulnerability scanning is a fundamental part of maintaining a secure hosting environment. Many compliance frameworks, such as PCI DSS for e-commerce sites, require periodic vulnerability assessments. Scanning tools range from open-source options like OpenVAS to commercial solutions, and many hosting providers offer built-in scanning as part of their security features.