The researchers also managed to get an Android antivirus app to download and install fake virus signatures that then identified the antivirus tool as a virus and gave the user the opportunity to remove it.
For example, the Cover Feed looks fantastic on tablets -- "it looks like a gorgeous personalized magazine about your friends" says Mosseri -- but neither viewing a massive 16 x 24 grid of icons in the app tray nor making a six-inch swipe to remove a Chat Head provides an ideal user experience.