If you notice, the topic of computer security is a hot one these days. You might also notice that much of the focus is on Microsoft Windows. Many design flaws and bugs causes Windows to have vulnerabilities which open doors for malicious exploitation. Hackers, virus writers and other "black hats" find these problems and figure out ways to take advantage of them.

In the best case scenario, some advertisement software can installed on which cause popups. They also lead to advertisements being placed on web pages that the original author never placed there. In a medium case scenario, spyware can find out what web sites people visit and report the data back to the theif. This can be used for marketing reasearch, or to target you for advertising certain things based on what you view. In the worse case scenario, critical malware like trojan horses can open a back door allowing a hacker access to your entire computer system. One of the worst results of being a victim of this crime is being further victimized by having your identity stolen.

The fact is, most of these threats come from the web. Make sure you have good anti-virus and firewall  software installed. It is also a good idea to clear your cookies from your web browser regularly.

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