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: After .jpeg it #39;s .doc Security advisory service Secunia said that it has discovered a highly critical vulnerability in Microsoft Word 2000 and 2002 that can be exploited to cause a denial of service attack and compromise a user #39;s system.

Sci/Tech