If you haven't heard Google released a new mobile security feature it's quietly pushing to your phone so if you haven't checked your settings>security>device administrator lately you might do so.. Here's a link to read about it and get the updated Google Play Services apk that for some reason hasn't been pushed with it to some phones yet..
https://www.google.com/url?sa=t&sou...=wdX0_VEIi7ggqOusC6CnMA&bvm=bv.50310824,d.aWc
https://www.google.com/url?sa=t&sou...=wdX0_VEIi7ggqOusC6CnMA&bvm=bv.50310824,d.aWc