Is it possible to include in a custom ROM, if not a secure authentication, at least a check whether it's likely you're connected to one of these?
Well, that's the annoying thing. AFAIK, to intercept, these things force the phone link into unencrypted mode. The part of the phone spec that says that your phone should tell you if that happens .. is apparently no longer implemented. In other words, we DID have a means to detect it, but it was apparently inconvenient to some agencies that mere civilians would be able to ask questions.
Caveat: this was from a while back, not sure this still applies so I'd welcome any updates.
Biting the hand that feeds IT
