What is the difference between Vulnerability Scanner vs Penetration Tester?

Career: Vulnerability Scanner

AspectVulnerability ScannerPenetration Tester
CredentialsCertifications like CompTIA Security+, CEH, CISSP often preferredCertifications like OSCP, CEH, GPEN often required
Work EnvironmentPrimarily software-based, automated scanning toolsHands-on testing, manual exploitation, on-site or remote
Industry UsageUsed by security teams for vulnerability assessmentEngaged for in-depth security testing and exploitation

While vulnerability scanners automatically identify security weaknesses, penetration testers perform manual testing to exploit vulnerabilities. Both roles are essential for comprehensive security, but they differ in approach and depth of testing.