The folks who gather early every morning in the West Wing office of White House Chief of Staff Rahm Emanuel have something new in common these days. Practically everyone has an iPad -- or will have one very soon.

Emanuel just got his, as did senior adviser David Axelrod and deputy press secretary Bill Burton. Both communications director Dan Pfeiffer and press wrangler Ben Finkenbinder have one on order. Economic adviser Larry Summers takes his to staff meetings.

The device is the hot, new White House toy, a gizmo that is popping up around Washington but seems to be particularly in vogue at 1600 Pennsylvania Ave.

A hacking group has obtained the e-mail addresses of 114,000 owners of 3G iPads by exploiting a security hole on AT&T’s Web site, according to a report by Gawker.

The group also obtained the identification number that those iPads use when they communicate over AT&T’s network, known as an ICC-ID. It is not clear what that information could be used for.

According to Gawker, which was given a copy of the list of e-mail addresses, it includes military personnel, staff members in the Senate and the House of Representatives, and people at the Justice Department, NASA and the Department of Homeland Security. Private-sector addresses that were exposed include those of executives at the New York Times Company, Dow Jones, Condé Nast, Viacom, Time Warner, the News Corporation, HBO and Hearst, along with bankers and venture capitalists.

The hacking group, Goatse Security, found that a program on AT&T’s Web site, when given an iPad’s ID number, would return the owner’s e-mail address. It used a script that could guess IDs and collect the associated e-mail addresses. The group eventually notified AT&T of the breach, and the security hole was closed.