2009/foss-mobile_world-seville2009/html/mgp00065.txt


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FOSS in the Mobile World
Work at 25C3


IMSI+IMEI skimming
very simple:
phones with automatic network selection pick strongest network
they send LOCATION UPDATE REQUEST
we send IDENTITY REQUEST IMSI + IMEISV
they send IMSI + IMEISV
we store this in the databasa
and then send LOCATION UPDATE REJECT