What describes a worm in computing?

• A. A program that encrypts data for security
• B. A self-replicating program that uses up resources
• C. A tool to clean infections from a system
• D. A software that improves system performance

Answer: (B)

A worm in computing is best described as a self-replicating program that uses up resources. Worms are a type of malware that can spread independently across networks, replicating themselves without any user intervention. They often exploit vulnerabilities in systems or software to propagate. As they spread, worms can consume substantial amounts of system resources, such as bandwidth and processing power, which can lead to performance degradation and potentially cause systems to crash or become unresponsive.

This self-replicating characteristic distinguishes worms from other types of malware, such as viruses, which typically require a host program to spread. Worms can also carry payloads that might cause additional damage, such as deleting files or stealing data, but their primary function is their ability to replicate and spread across networks. Understanding the nature of worms is crucial in cybersecurity, as they can significantly impact organizational networks and individual systems.