Re: This has been a scandal for years
Networks operate according to the defined mobile standards. 4G (and to a lesser extent 3G) have bidirectional authentication, so your phone knows it is taking to a real network before sharing too much info. But, as the article notes, IMSI catchers force your phone down to 2G. That's a legacy standard with crappy security. There's nothing the networks can do about it short of refusing service to anything that supports 2G. Which is pretty much everything on the market. That might be seen as a tad drastic.
Users can do something about it though - a lot of phones let the user turn off 2G through system menus.
Biting the hand that feeds IT
