Defcon 18 - Practical Cellphone Spying - Chris Paget - Part.mov

Worse since they're expensive and pushed by the manufacturer to the point you cannot physically plug a 3.5mm male plug into a female adapter on the newer phones -- you are forced to buy a dongle. Meanwhile the intelligence agencies of the world siphon up signals like hungry hungry hippos because SDRs are cheap and ubiquitious, when ten-ish years ago they were poorly documented, expensive, and the encryption schemes used strong enough using 4g over wifi was a very practical security decision. Here's an old talk that references someone's deadname with good technical information: ▶ this video And a more recent talk on similar subjects: link | link (Apologies to Kristin, if they see this: I had trouble locating JUST the slides, not audio or video, of the DC18 talk or I would have simply linked the slides.)

I don't have the details in mind but checkout link Since digital, handsets validate the tower they are talking too, this info is stored on sim or device depending on model. So to intercept 2g, there is some work See ▶ this video

▶ this video I watched this DEFCON talk a while ago. Not sure if it's still relevant, but it is quite worrying.

And there's a much simpler, regulation-free way to do this anyway: ▶ this video So this bill is probably just what it seems - a way to curb cellphone pilferage.