This is a reminder to be on the alert for those pop-up warnings that claim your system is infected. They've created very convincing looking warnings that tell you to call an 800 number to get help getting rid of the infection. This scam is not Windows-specific as those running a Mac are experiencing the same scams. This attack is generally browser-based, which is why it's effective with any type of computer through links that are posted around the web or sent to you via a phishing scam. Keep in mind that Internet security companies that have 10's of millions of users will never encourage you to call a toll-free number... they couldn't possibly deal with the number of calls. Another way to quickly identify these scams is by getting very familiar with the security software that you have running on your computer. These two visual cues are the best way to know when you are trying to be scammed!