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Hacking is unauthorized intrusion into a computer or a network. The person engaged in hacking activities is generally referred to as a hacker. This hacker may alter system or security features to accomplish a goal that differs from the original purpose of the system.
Hackers employ a variety of techniques for hacking, including:
Certain corporations employ hackers as part of their support staff. These legitimate hackers use their skills to find flaws in the company security system, thus preventing identity theft and other computer-related crimes.