How security testing differs from vulnerability scanning

Vulnerability scanning is an automated method for evaluating technical security. Tools are used to detect open ports, known vulnerabilities, and configuration errors. The method is fast and inexpensive, but accuracy is limited. On average, and based on our extensive experience, scanners used in web applications identify fewer than 24% of vulnerabilities, while the remaining 76% require expert testing.

Penetration testing is a more comprehensive approach. It always begins with a vulnerability scan to provide an initial picture of the system’s security posture. But penetration testing goes much further. Instead of only listing vulnerabilities, it also demonstrates the real impact they could cause. By actively exploiting issues, testers eliminate false positives reported by scanners and provide an accurate assessment of the true risk level.