SIM Card Cloning

You get a missed call from a number start with +92,#09 or #90 and for courtesy or curiosity you callback to that number.Then you are in the high risk of your SIM card cloning.More than one lakh of people have already fallen this "telecom terror attack".

There is a hardware tool which can extract the authentication key from the SIM and copy it to another but from remote location to retrieve information from SIM requires very expensive hardware and well trained personal.It may even require hacking into the telecom operator's network

So before storing very secret and valuable information one should keep in mind that anyone can clone their SIM and those information can be extracted quite easily from its memory and even calls be made from SIM.