An ethical hacker is a computer and networking expert who systematically attempts to penetrate a computer system or network on behalf of its owners for the purpose of finding security vulnerabilities that a malicious hacker could potentially exploit.
Ethical hackers use the same methods and techniques to test and bypass a
system's defenses as their less-principled counterparts, but rather
than taking advantage of any vulnerabilities found, they document them
and provide actionable advice on how to fix them so the organization can
improve its overall security.
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