I stumbled upon this article yesterday: Hacker Spoofs Cell Phone Tower to Intercept Calls | Threat Level | Wired.com I didn't see it posted elsewhere here, but sorry if this is a repost. I realize that there is a relatively small number of people who would actually try to do such a thing to intercept calls (and potentially data at some point with some tweaks), but assuming that this can easily be done and such, how big of a deal is this really? I'm not too well-versed when it comes to cell phone communications technology, so I'm just curious if anyone here can offer any opinions as far as just how vulnerable this leaves those of us on networks that use GSM like AT&T and T-Mobile. The article mentions that the hacker was only really able to make it work on 2G. Does that mean we're okay as long as our phones show we're on EDGE or 3G? I'm still pretty confused by this, so I hope some of you here can clarify this for me. Thanks!