Spyware is a type of malware that intercepts or takes partial control of a user's computer without the user's consent. Which option best describes spyware?

• A. It is a type of malware that legitimate security software uses to monitor performance.
• B. It is a type of malicious software that intercepts or takes partial control of the user's computer without consent.
• C. It is a browser extension for ad management.
• D. It is a routine maintenance tool.

Answer: (B)

Spyware is covert malicious software designed to monitor or control a computer without the user's knowledge or permission. The best description matches this by stating that it intercepts or takes partial control of the user's computer without their consent, which is exactly what spyware does. This sets it apart from legitimate security tools that monitor or protect with user consent and transparency. A browser extension for ad management and a routine maintenance tool are examples of legitimate software; they’re not defined by covert surveillance, unless they operate secretly and without consent. The defining factor is unauthorized monitoring and control of the device, which is the hallmark of spyware.