What term describes an unauthorized hacker who intrudes into a system to exploit it for malicious reasons?

• A. Black-Hat Hacker
• B. White-Hat Hacker
• C. Script Kiddie
• D. Insider Threat

Answer: (A)

An unauthorized hacker who intrudes into a system to exploit it for malicious reasons is described as a black-hat hacker. This term directly captures both the intent (malicious) and the lack of permission (illegal intrusion), which is exactly what the scenario describes.

In contrast, a white-hat hacker is someone who hacks with permission to test and improve security, not to cause harm. A script kiddie refers to an attacker who uses ready-made tools without deep expertise, which describes skill level more than intent or authorization. An insider threat involves someone from inside an organization who misuses authorized access, which is a different scenario than an external, unauthorized intruder.