Archives for General Packet Radio Service

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.