Define "white hat hacker."

A white hat hacker is defined as an ethical hacker who tests and improves the security of systems and networks with permission. This designation reflects their role in cybersecurity, where they work to identify vulnerabilities and weaknesses in systems to help organizations bolster their defenses. White hat hackers operate legally and ethically, often contracted by organizations to perform penetration testing or security assessments. Their ultimate goal is to protect sensitive information and systems from malicious attacks.

The choice highlighting that they operate with permission underlines the ethical nature of their work—distinguishing them from malicious hackers, who exploit vulnerabilities for personal gain. White hat hackers are typically skilled professionals who adhere to a code of conduct that emphasizes responsible hacking practices, contributing positively to the field of cybersecurity.