An imprisoned terrorist in India is using a contraband cell phone and a custom built encrypted VoIP network to secure his communications with his organization. The VoIP network runs on GPRS (mobile data service on 2G or 3G cellular communication system), and was created by the terrorist’s own tech team. The technical significance of this approach is the use of the data transmission capabilities of the cell phone to transmit encrypted voice conversations that cannot […]
GPRS
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