I was just browsing, looking for a new wallpaper using google images. I searched for "nyc penthouse wall papers" and was looking through wallpapers. I clicked on one of the links for the wallpaper webpage, I was brought to a webpages saying that my "Apple" computer was infected with X number of viruses and prompting me to install a new virus protector. I knew that it was fake and closed it immediately. However, to my surprise, Safari download windows popped up, and it downloaded "MacSecurity.mpkg", as shown in the screenshot. Then an installer windows popped up prompting me to continue with the installation. I immediately quit the installer. It googled "MacSecurity" and found the following link. http://www.securemac.com/MAC-Defender-Rouge-Anti-Virus-Analysis-Removal.php I am now concerned, since safari downloaded the mkpg, and it launched, does that mean my Mac is now infected? Or would it have only been infected if I continued the installation and entered my password? Should I just delete the mpkg or take some other action. As a precaution, I am currently scanning my Mac using iAntiVirus. Anything else I should do?