A recent article describing this issue pretty well: http://www.nytimes.com/2014/10/20/technology/dial-and-redial-phone-hackers-stealing-billions-.html http://ww

A recent article describing this issue pretty well: http://www.nytimes.com/2014/10/20/technology/dial-and-redial-phone-hackers-stealing-billions-.html http://www.nytimes.com/2014/10/20/technology/dial-and-redial...