Worm spreads itself, not only from file to file, but also from computer to computer. The primary difference between a virus and a worm is that a virus must attach to something, such as an executable file, to spread. Worms do not need to attach to anything to spread and can tunnel themselves into computers.

True

Explanation:

Hackers are individuals with the skills to attack and exploit computer network security vulnerabilities, to access information needed for fraudulent activities.

They use tools like viruses, worms, rootkits, keyloggers, Trojan horse etc to weaken, damage and access computer system networks.

The virus is a malicious software used by a hacker to weaken computer security. It requires a medium like executable files to move from system to system. The worm is another type of malware, unlike virus, it don't need to attach to anything to spread within computer networks.

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