Definition: In this task, you are given a news article. Your task is to classify the article to one out of the four topics 'World', 'Sports', 'Business', 'Sci/Tech' if the article's main topic is relevant to the world, sports, business, and science/technology, correspondingly. If you are not sure about the topic, choose the closest option. Note that URLs in the text have been replaced with [Link].
Input: Super-connected users could aid IM worms Just a few users connected to popular instant messaging (IM) networks can cause the spread of worms, while choking off communications from "highly connected" users with many IM correspondents can slow the spread of worms, say computer researchers.

Sci/Tech