Network Security Course Assignment

To provide you with the opportunity to research a recent event in the media of significance to this course.
Stuxnet is a computer worm that recently received media attention. In this assignment you are asked to write a brief report answering the following questions.

1. What is a computer worm and how does it propagate?
2. What appears to be the main target of the Stuxnet worm?
3. When was the worm first reported and who reported it?
4. What does the computer worm allegedly do to its target? What impact could this have on the target and general critical infrastructure?

Please note that much of the information to answer these questions is available online. Please provide a list of references at the end of your report that you used to answer the questions.