Are the wireless carriers (ie Verizon, AT&T, etc) complicit in the manufacture of these products? It would seem to me that those companies would regard the use of a "Stingray" to impersonate one of their towers as an unauthorized intrusion into their network.

Is it possible for wireless carriers to modify their towers so as to make them less susceptible to spoofing? If so, why don't they do so?!

I'm not a telecom engineer so this is not my area of expertise.

Good questions. I do a lot of M2M projects that use 3G modems on so called private networks (e.g. Verizon hands out a 10.x.x.x IP address for the devices). The argument is always made that this would require a lot of $ and equipment to crack, but if these Stingrays can intercept M2M datastreams then that's now another thing to worry about.

Does anyone know if these Stingray devices could also be used to intercept M2M IP traffic from a cell modem?