Take a look on your settings>security>device admin. If you didn't already have it, u should be getting Android Device Manager. I read that Google started sending this out a couple weeks ago. It will soon be on all compatible devices. It will give the ability for wiping ur phone remotely, and eventually also let u track ur device if stolen. This might be what u are talking about.I know this just showed up on my phone like 2 days ago. Also take a look at settings>accessability.I don't remember off hand, but I don't remember having talkback or the notification toggle. So this might have been.installed also,but then again I'm pretty burnt out, so that might have already been there. But I know the device admin. Is new for me