What I did was to shut down my WIFI and Cellular connections on the iPad just to be safe. Then I did the steps listed in the link from the earlier post, I also had to clear the Browsing History. Doing this I was able to get the looping Security error to stop. I also called the phone number and had some fun with the people at that number who pretend to be a real Security outfit. They are not a Security firm, they are hacks trying to get access to your PC so they can install software and steal and cheat from you. Do Not Trust Them! They are only a pretend security company only out to hack your PC and do harm.