Monday, September 1, 2014

Android security mystery - 'fake’ cellphone towers found in U.S.

"What we find suspicious is that a lot of these interceptors are right on top of U.S. military bases." says Goldsmith.  "Whose interceptor is it?  Who are they, that's listening to calls around military bases?  The point is: we don't really know whose they are."

Baseband attacks are considered extremely difficult – the details of the chips are closely guarded. "Interceptors" are costly devices – and hacking baseband chips is thought to be technically advanced beyond the reach of "ordinary" hackers, ESD says. The devices vary in form, and are sold to government agencies and others, but are computers with specialized software designed to defeat the encryption of cellphone networks. The towers target the "Baseband" operating system of cellphones – a secondary OS which sits "between" iOS or Android, for instance, and the cellular network.

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