Archives for IMSI Catcher

International Mobile Subscriber Identity (IMSI) Catchers

International Mobile Subscriber Identity (IMSI) catchers are basically spoofed cell towers. There are many different types of IMSI catchers, everything from a home built $1000 unit to a professional grade one which can cost substantially more. The NSA has their own “version” of a GSM IMSI catcher which is called CANDYGRAM. I talked about CANDYGRAM in my article NSA’s Version of a GSM IMSI Catcher CANDYGRAM.   International Mobile Subscriber Identity (IMSI) Catchers As I said above IMSI catchers are basically spoofed cell towers. These spoofed cell towers simply go between you and your handset and the service provider’s real
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Categories: Information Technology, IT Security, and Preston Hood.

NSA’s Version of a GSM IMSI Catcher CANDYGRAM

This is one of the most non-surprising NSA documents I have seen. This device is named CANDYGRAM and its purpose is to act as an IMSI catcher for GSM cellular networks.   What It Is CANDYGRAM is a device that mimics a GSM cell tower of a target network. This is basically the same thing as an IMSI catcher but with a few extra bells and whistles. One of the extra features is that it sends out an SMS though the external network to registered watch phones when a target handset enters the base station’s area of influence. CANDYGRAM is
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Categories: Information Technology, IT Security, and Preston Hood.