This Mac Is Not Secure is a scam, that is created to trick people into calling shady support center for unneeded service. It will redirect browsers and display following alert “WARNING! Call Apple Help Desk:”. As you may see, the scam is designed specifically for Mac OS users. When this page suddenly appears in a browser, a lot of people take all the fake messages from it seriously. We assure you, that there is nothing wrong with your computer, it’s a blind threat to make you pay them. In this article you may learn how to remove This Mac Is Not Secure scam.