Archives for 2.5G

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.