Weird message screen appears on my iphone

[deadpoetess]

Hi, I wonder if anyone has ever seen this screen before. It appears on my iphone every now and then, even when my screen is locked. I have no idea what it is or where it's coming from. Can somebody please shed a light on this?
Thanks!
(screenshot attached)

 

[ScubaCinci]

It's a trap! /ackbar

 

[hbennis]

It's either aliens have taken control of your phone or the NSA is installing its extensions in preparations for iOS 8