I'm Glad I'm on CDMA... for now.

Although GSM wireless has been known to have security issues for a long time, these guys have demonstrated a far more specific (and cheap) attack.

Here is what it comes down to.

If these hackers have done it today, governments have already done it. The difference is they don't tell anyone because communications security is not in the interest of governments. They just want you to feel secure, not to be secure.

Now that this is out in the open, I would hope (though not wager) that Cingular ATT, as the largest GSM network in the U.S. takes immediate measures to secure their traffic. If we see P.R. assurances that everything is OK, then we will know they aren't going to do that, and instead will rely on hope.

All in all, it is people like this, who take on the challenge to find the cracks, that keep all of us safer. Why? Because these guys make their information public. The threat (to our privacy) are the people who discover exploits and don't tell anyone.

Why worry if you have nothing to hide?
Because what is innocuous today could become a problem tomorrow with a simple policy change (like electing an administration with different priorities...)