A penetration tester, often referred to as a "pen tester," is a cybersecurity professional who simulates cyberattacks on computer systems, networks, and applications. Their primary goal is to identify vulnerabilities that could be exploited by malicious hackers. By conducting these tests, they help organizations strengthen their security measures and protect sensitive data. Penetration testers use various tools and techniques to assess security weaknesses. They may perform tasks such as network scanning, social engineering, and web application testing. After completing their assessments, they provide detailed reports outlining their findings and recommendations for improving security protocols.