Yeah, I wonder too. I had Cyanogenmod on a very old Android phone, and after a while messaging started to act up in strange ways. The paranoid side of me start

Yeah, I wonder too. I had Cyanogenmod on a very old Android phone, and after a while messaging started to act up in strange ways. The paranoid side of me started to weigh different explanations against each other, and one would be a compromised base band processor which tried to do something to the Android side, but failing, since it was no longer the vendor image it (hypothetically) was expecting to manipulate. Security is tricky and must be designed in depth and a mistrust of all layers. If the hardware is designed such that the baseband the main CPU are not separated by a communications channel, all can be lost if one does not control the baseband firmware too. (For instance if the baseband processor has shared memory access, that's a problem. If it's just a data interface, treat the baseband processor as a hostile network.) In my case, the likelier cause was probably something buggy in the Cyanogenmod image, or, while still unlikely but less so than baseband exploit, that the Android side itself had gotten some kind of virus because of some kind of security flaw in that particular Cyanogenmod version.