I just recently Updated to the new mac os yosemite after updating a message appeared on the top right corner that displays "Your Antivirus Subscription Has Expired" The only antivirus program I am running is mackeeper and that doesn't run in subscriptions I am scared to click the pop up in fear it might be a virus. Additional Info: The options the pop up gives me are ( Re-New Subscription, Don't Show Again and a little gray box on the right hand corner that displays a X) Has anyone experienced this or know what it is?