Part 1 consists of 6 paragraphs, from Paragraph 1 to Paragraph 6. This part is an introduction to the Melissa virus. The author tells us what this virus is like, how it spreads across the Internet and damages the infected systems, and also about the heavy losses to users, including government, commerce and customers. One example is given in Paragraph 6 to show how the virus attacks and damages the system. And finally, the author tells us that we have no hard estimates of the cumulative monetary damage resulting from the loss of productivity and other disruptions associated with the virus.
Part 2 is made up of two paragraphs: Paragraphs 7 and 8. Paragraph 7 is a transitional paragraph that links Part 1 with the successive parts. Paragraph 8 lists some necessary precautions to protect our systems from being attacked or infected by viruses.
Part 3 consists of the last paragraph. As the summary of the whole text, this paragraph briefly emphasizes the threat from malicious viruses and then further points out the lessons we should learn from the Melissa virus.
