The network security guys at T-Mobile USA probably breached their underpants after some black hat or group of black hats named “Pwnmobile” posted on seclists.org a sizeable list of internal hostnames, OSes,  partial descriptions, internal IP addresses, and facilities relating to the back-end of T-Mobile’s customer management and services network.

At first, T-Mobile tried to say it was just a list pulled from a corporate document; but now the company is admitting that it was, in fact a major security breach according to a USA Today Blog and are not disclosing how much data was taken.  Odds are, if whoever managed to get this far, a very sizeable amount of data was captured. The person who made the posting mentioned that they had tried to sell the information to competitors, but they were not taken seriously.

On a slightly related note, the posting related the T-Mobile hack with Check Point. Does this mean a perimeter Check Point firewall was either hacked or exploited to gain access to this network? Only further elaboration from Pwnmobile, T-Mobile, or an insider can say. There have been several recently published high-visibility Check Point exploits and perhaps they were used in the hack.