What does a security tester do?

A security tester works to ensure the security of computer networks and systems. Their duties are to gather information and make assessments of computer security systems for a client or employer. They perform scans, look for vulnerabilities in applications, and locate other risks. Other responsibilities include conducting research and trying to breach networks using methods commonly deployed by hackers. The qualifications to become a security tester vary but often include a degree in computer science, cybersecurity, IT, or a related field or extensive experience and technical skills. Professional certifications are available.