Email Addresses and SIM Identifiers of 114,000 AT&T iPad 3G Users Exposed - MacRumors
Skip to Content

Email Addresses and SIM Identifiers of 114,000 AT&T iPad 3G Users Exposed

172558 ipad 3g badge

Valleywag reports that a security breach on AT&T's website has allowed public access to email addresses and SIM card identifier numbers (known as ICC-IDs) for 114,000 iPad Wi-Fi + 3G users on the company's cellular network.

The breach, which comes just weeks after an Apple employee lost an iPhone prototype in a bar, exposed the most exclusive email list on the planet, a collection of early-adopter iPad 3G subscribers that includes thousands of A-listers in finance, politics and media, from New York Times Co. CEO Janet Robinson to Diane Sawyer of ABC News to film mogul Harvey Weinstein to Mayor Michael Bloomberg. It even appears that White House Chief of Staff Rahm Emanuel's information was compromised.

The security hole, which has been closed by AT&T, appears to have been related to data meant for a Web application accessible on the iPad. Those who discovered the hole were able to guess large swaths of ICC-ID numbers based on a handful of known numbers and use a script paired with an iPad user agent setting on their browser to query the email addresses associated with the ICC-IDs.

Beyond the obvious privacy implications of having personal email addresses exposed, it is unclear exactly what the ramifications of the security breach are. Despite claims from those who discovered the breach that the information might be able to be used to spoof devices or intercept data, other security researchers do not believe that to be possible. AT&T and Apple have yet to comment on the situation.

Popular Stories

Apple Wallet

iOS 27 Will Add Two New Apple Wallet Features to Your iPhone

Monday June 1, 2026 12:15 pm PDT by
Apple is set to unveil iOS 27 during its WWDC 2026 keynote on Monday, June 8, and the update will reportedly include two new Apple Wallet features. First, iOS 27 will reportedly let users create their own digital passes by scanning items like movie tickets, concert passes, and gym membership cards. Many apps already offer Apple Wallet passes, but now users will be able to create a custom...
HomePod mini and Apple TV Sage

New Apple TV and HomePod Mini Are 'Nearly Ready' to Launch, New Siri Remote Also Rumored

Sunday May 31, 2026 8:47 am PDT by
New models of the Apple TV 4K and HomePod mini are "nearly ready to go," according to the latest word from Bloomberg's Mark Gurman. Subscribe to the MacRumors YouTube channel for more videos. Both devices have been ready "for months," but Apple is holding off on launching them until the more personalized version of Siri is available, he said. "I am told the hardware for the next Apple TV...
Apple Foldable Thumb

First 'Confirmed' iPhone Ultra Color Allegedly Revealed in Leaked Image

Monday June 1, 2026 4:39 am PDT by
Apple is expected to launch its first foldable iPhone later this year. Rumors suggest the "iPhone Ultra" will come in two color options, and a leaker shared an image today that allegedly shows one of them. Posted on Weibo by the Chinese leaker known as Ice Universe, the image purportedly offers a first glimpse of Apple's foldable in white. The device is believed to have entered early mass...