I don't know if this is categorized as a virus, but here is the info: My mother-in-law tried to go to Amazon, but accidentally misspelled it (not sure in what way). A call to action pop-up (like a push notification) came up that was larger than the whole screen vertically. This prevented the ability to clear the notification out. She called the number on the pop-up warning her about the virus and they tried to charge her to get rid of it. She said she would wait and talk to me - thankfully. She now knows to NEVER call a number from a website about a virus. Anyway, I've seen this sort of thing on the Mac and it is much more "infectious" in the browser. Quite a pain to get rid of, but didn't think it was possible on iOS. It was very simple to get rid of - Settings > Safari > Clear web data and history. Just thought I would give a heads up in case someone else runs into this.