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: Microsoft Won #39;t Give SP2 Security Fixes to Older Browsers  quot;The most secure version of Windows today is Windows XP with SP2, quot; Microsoft explained in a statement it issued.  quot;We recommend that customers upgrade to XP and SP2 as quickly as possible.

Sci/Tech