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Hackers attack pre-paid GSM connections
KARACHI (July 23 2006): The hackers have now expanded their circle of operations to the cellular networks, as a number of GSM pre-paid subscribers have been deprived of their balances. The pre-paid cellphone subscribers are in a severe problem as their account balance disappear mysteriously without making any phone call or sending short messages.
The problem is being faced by all mobile operators who are consistently receiving complaints from their subscribers that their balance had been theft, while Mobilink is the worst hit.
According to details, a 'magic-sim' is moving in the market, which automatically detects the pre-paid sim in its surroundings and hacks the balance.
One only needs to install this magic-chip in the cellphone to make unlimited phone calls to any network even international calls without spending even a single penny, but the victims lose their pre-paid balance.
One mobile phone accessories dealer in the Sadar Electronic Market said this thieve-chip was available in the city for Rs 2,500 to Rs 3,000.
He said there were two different procedures of operating the magic-sim; either the user let the chip to detect and identify another GSM pre-paid connection in its range to steal the balance, or the user insert the code from any used scratch card and dial any number, the call would be connected.
The mobile operators are helpless to detect the persons using this chip, as there remains no record of the calls made through the stolen balance with the mobile operators.
It was also learnt that this hacking chip could also barge into the personal data saved in the sim-card and the cellular phone of the subscriber becoming the victim to the hacking tool.
One Mobilink customer representative told Business Recorder that they had received complaints in this regard and they were taking security measures to shun the practice.
He also said that a 'firewall' was being installed so that this hacking device could not intrude the balance of other subscribers. This chip has become very popular in interior Sindh, where it is available quite easier than the cosmopolitan city. It may be mentioned here that the developed countries are also suffering from this modified mode of hacking.
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and im also thank full to Jeved Mirza for this use full information
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