AT&T Said to Expose iPad Users' Addresses

A group of hackers said Wednesday that it had obtained the e-mail addresses of 114,000 owners of 3G Apple iPad, including those of military personnel, business executives and public figures, by exploiting a security hole on AT&T's Web site.

The group, which calls itself Goats Security and says it specializes in exposing security vulnerabilities, also obtained the identification number that those iPad use when they communicate over AT&T's network, known as an IC-ID, according to a member of the group who agreed to speak on condition of anonymity. AT&T acknowledged the breach and said that by Tuesday it had turned off the feature on its Web site that allowed the group to find the e-mail addresses. Security experts said it was not clear whether the breach would have serious consequences for those whose information was obtained.