I'm thinking about whether or not to get a mobile(3G/4G) broadband router, but I need to know a few things about them.
How secure are they?
If an attacker were to put up a femtocell/rogue cell tower close by, what kind of attacks are possible? How much of the internet traffic can they view and/or modify?
Is it possbile for the SIM module itself to be attacked through some combination of AT commands?
Would using tor over mobile broadband be reasonably secure?
What kind of attacks on the the mobile broadband router's DNS/ARP are possible and what ways are possible to secure or defend against them?