The iPad security breach last week potentially exposed the emails of 114,000 AT&T customers, but that is not the only information that could have been discovered by clever hackers. iPad owners will be surprised to know that the data breach revealed far more personal and sensitive information than is generally known. Reports initially said only email addresses and ”ICC-ID numbers,” a seemingly unimportant identifier, were leaked. But those ICC-ID numbers reveal a lot about users, their identity and their location.