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Define Trojans, viruses, and worms

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Define Trojans, viruses, and worms.

Share an experience in which you or someone you know has encountered one of these threats. Explain the impact of the encountered threat and how it was resolved.

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Trojans: A Trojan is a malicious program hidden as a legitimate or unsuspecting program. A trojan installs as a regular program, but in fact does something malicious. Trojans are often used to gain backdoor access to a user's system. Trojans also make use of the hosts resources to gain external access, Internet spamming, and other unwanted activities.

Viruses: A computer virus is a program written to act similar to a biological virus, i.e., infect and spread inside a computer. The key feature of a virus is its replication function. It can reside as a standalone program or within other programs. Virus uses host resources in order to replicate ...

Solution Summary

The solution talks about Trojans, viruses, and worms.
I share an experience about someone who has encountered and explain the impact of the problem.