Question

Question 1: What is a virus? What is a worm? How are they different? Outline measures you should take to protect yourself against viruses and worms.

Answer 1

Virus-Vital Information Resources Under Seize is a computer program or a piece of code that is loaded onto your computer without your knowledge and run against your consent .It is a type of malicious software that, when executed, replicates itself by modifying other computer programs and inserting its own code. When this replication succeeds, the affected areas are then said to be infected with a computer virus. These copies of virus enable it to spreads from one program to other program of computer and from one infected computer to other computer.

CREEPER was the first virus.

WORM- Write Once Read Many is a standalone malware computer program. It can replicate and spread like virus but they do not depend upon a host program or human help to propagate to spread. Being able to self-replicate it can produce multiple copies of itself. It often uses a computer network to spread itself, relying on security failures on the target computer to access it.

Outline measures to protect oneself from virus and worm

1. Get a good anti-virus.
2. Have knowledge of what malicious programs look like.
3. Be wary of e-mail attachment.
4. Avoid the Third Party Downloads.
5. Check SSL (Secure Socket Layer) before dealing with any e-commerce.
6. Regularly Backup Your Data.