Does this affect iPhone users?
http://www.bbc.com/news/technology-31545050
http://www.bbc.com/news/technology-31545050
The Intercept says that "the great Sim heist" gave US and British surveillance agencies "the potential to secretly monitor a large portion of the world's cellular communications, including both voice and data".
It says that among the clients of the Netherlands-based company are AT&T, T-Mobile, Verizon, Sprint and "some 450 wireless network providers around the world.