Gemalto, a French-Dutch digital security company, said on Wednesday that it believed that American and British intelligence agencies had most likely hacked into the company’s networks in an attempt to gain access to worldwide mobile phone communications. But it said that the intrusions had only limited effect.Gemalto said that the attacks had occurred over two years, starting in 2010, but that the National Security Agency of the United States and its British counterpart, the Government Communications Headquarters, or GCHQ, had failed to gain wholesale access to the company’s SIM card encryption codes.
http://www.nytimes.com/2015/02/26/business/international/gemalto-says-nsa-tried-to-take-sim-encryption-codes.html