As an experiment, I tried putting the sim card from my att activated 2g original iphone, into a new 3g phone of a co-worker. (besides the whole "you got your chocolate in my peanut butter moment") it ...

Gemalto — the world’s biggest maker of SIM cards for mobile phones — says that it has “reasonable grounds” to believe that the NSA and GCHQ carried out an operation to hack its network in 2010 and ...

Earlier this month reports surfaced suggesting that US and UK intelligence agencies were able to successfully infiltrate the world's largest SIM card maker and steal its encryption keys. After ...

The company will instead focus on its 3G, 4G, and 4G LTE services. Digicel has urged its customers with 2G SIM cards to trade their SIM cards for 4G-compatible ones free of charge, to ensure that ...

Suited for 2.5G/3G wireless applications the LTC4557 dual SIM/smart-card power supply and level translator provides both 1.8- and 3-V subscriber identity module (SIM) power and digital signal level ...