Questions: Which type of malware is unique in its ability to self-replicate and spread across networks without requiring a host program or human intervention? Worm Virus Trojan Horse Ransomware Spyware

The answer is the first one: Worm.

Explanation for each option:

• Worm: A worm is a type of malware that is unique in its ability to self-replicate and spread across networks without requiring a host program or human intervention. Worms can propagate themselves across networks by exploiting vulnerabilities, making them particularly effective at spreading quickly.

• Virus: A virus is a type of malware that attaches itself to a host program and requires human action to spread, such as opening an infected file or application. Unlike worms, viruses cannot self-replicate without a host.

• Trojan Horse: A Trojan Horse is a type of malware that disguises itself as legitimate software to trick users into installing it. It does not self-replicate or spread on its own; instead, it relies on user action to be distributed.

• Ransomware: Ransomware is a type of malware that encrypts a user's files and demands payment for the decryption key. It does not self-replicate or spread without user intervention.

• Spyware: Spyware is a type of malware that secretly monitors and collects user information without their knowledge. It does not self-replicate or spread on its own.

In summary, worms are distinct in their ability to self-replicate and spread across networks without needing a host program or human intervention, making them the correct answer to the question.