AT&T Inc said on Wednesday users of Apple's iPad may have had their personal information exposed through a network security flaw.
The breach, which was first reported by the website Gawker, led to the potential exposure of users' email addresses, AT&T said.
This issue was escalated to the highest levels of the company and was corrected by Tuesday; and we have essentially turned off the feature that provided the email addresses, spokesman Mark Siegel said in an email statement.
Apple did not respond to a request for comment.
The iPad, which launched in April, has already sold more than 2 million units worldwide.
Gawker said it was informed of the breach and given a list of the email addresses by a group of hackers.
The report said more than 100,000 iPad user accounts may have been compromised.
AT&T said it was continuing to investigate and will inform all customers whose email addresses may have been obtained.
AT&T said the group who discovered the flaw did not inform the company, which was alerted to the problem by an unidentified business customer.
(Reporting by Gabriel Madway; Editing by Bernard Orr)