What is true about how a worm operates?

A worm is classified as a type of malware that can autonomously replicate and spread itself without requiring any user action. This characteristic distinguishes it from other forms of malicious software, such as viruses, which typically need some form of user intervention to execute or propagate. Worms are designed to exploit vulnerabilities in software or networks, allowing them to spread rapidly across connected systems without manual effort.

By being self-replicating, worms can quickly infiltrate large networks, copying themselves to new machines and potentially causing significant disruption and resource depletion along the way. This automatic propagation mechanism is what makes worms particularly dangerous compared to other types of malware that rely on user actions, such as running an infected file or clicking on a malicious link.