Associated Press | Apple and AT&T faced two major problems taking orders for the newest
iPhone model just a week before it hits stores: Buyers reported
problems registering their orders and an apparent glitch in AT&T’s
website was steering some customers into strangers’ accounts.

Troubles in meeting demand for the iPhone aren’t new.

But the latest apparent breach and other recent security foul-ups by AT&T could lead to identity theft — and have consequences for both companies. Customers have called for Apple to allow other carriers to serve the iPhone in the U.S., and the latest problems offer another argument.

The computer systems at Apple Inc., maker of the iPhone, or AT&T Inc., its exclusive U.S. carrier, have had various problems every year since the first iPhone launched in 2007.

Some customers who tried to buy an iPhone 4 on Tuesday said they were met with error messages on the company websites, and lines formed in stores as clerks tried to get orders into their systems.

Despite the problems, orders for launch-day shipments of the iPhone 4 sold out. On Wednesday morning, AT&T’s site was no longer accepting orders. Apple’s site was accepting orders only for black models, and would only guarantee shipment by July 2. That sets the scene for long lines at stores on June 24, when the phone is released.

The iPhone 4 costs $199 or $299, depending on the memory capacity. It will feature a higher-resolution screen, longer battery life and thinner design than last year’s model.

Japanese phone company Softbank started taking orders earlier in the day, and was also flooded with requests. Softbank spokesman Furuya Katsuhide said that the better-than-expected demand had stressed the company’s systems, which slowed both its website and the reservation process at stores.

On Gizmodo.com, a technology website, several readers posted stories of trying to log into their AT&T accounts to upgrade to the newest iPhone and being sent instead into strangers’ accounts. That could set the stage for identity theft scams such as ordering other products under that person’s name.

AT&T said it received reports of customers seeing the wrong account information but wasn’t able to replicate the problem and was investigating. But the company said the personal information users were seeing in one another’s accounts didn’t include Social Security numbers, credit card information or detailed call logs.

Just last week, AT&T plugged an embarrassing security hole on its website that exposed the e-mail addresses of people who had bought another new Apple product, the iPad.

And in January, AT&T acknowledged to The Associated Press that a problem in its network was causing some wireless customers to land in strangers’ Facebook accounts when they tried to check their own accounts using their smart phones. AT&T said it was fixing that glitch.

It doesn’t happen often, but the Internet can forget who is who when multiple people log onto a site at the same time.

AT&T blamed a “misdirected cookie” for at least one of the problems in January. A cookie is a file websites place on users’ computers to identify them. If the Internet provider fumbles a cookie and sends it to the wrong computer, the person using that computer will see a Web page he or she wasn’t expecting.

Apple representatives didn’t immediately respond to requests for comment late Tuesday.