Government Spies Steal SIM Card CryptokeysThe United States' National Security Agency and British spy agency GCHQ have hacked into the internal computer network of Gemalto, the world's largest maker of SIM cards, and stolen the cards' encryption keys, according to information in files leaked by whistle-blower Edward Snowden. Gemalto makes about 2 billion SIM cards a year, and sells them to 450 major wireless network carriers worldwide.
Source:
Government Spies Steal SIM Card Cryptokeys