Every GSM phone needs a SIM card, and you'd think such a ubiquitous standard would be immune to any hijack attempts. Evidently not, as Karsten Nohl of Security Research Labs -- who found a hole in GSM ...
SIM card problems can easily be determined by the error prompts and warning messages. Among the most common SIM errors that have plagued various Android devices ...
Wireless carriers sell you “postpaid” contract phones at a considerable discount. The carrier expects to recoup its outlay — the full price of the equipment — over the life of the contract that you ...