One of the forms of malicious code is worms. In your own words, briefly describe a worm, a mass-mailing worm, and a denial of service attack.

I need this written in Apa format, with at least 200 words and at least one-in text citation with references. If at all posssible you can use this resource:

Parsons, J., & Oja, D. (2010). Practical computer literacy (3rd ed.). Boston, MA: Cengage Learning.

No plagiarism allowed, I need this done by 12:00 P.M tommorow. ( Lunchtime)