Sprint subcontractor leaves more than 230,000 U.S. cell phone bills, other documents exposed online

New York Daily News 1 week ago

Another day, another data breach.

Hundreds of thousands of U.S. cellphone bills have been discovered exposed online after a Sprint contractor accidentally stored several carriers’ invoices on an unprotected cloud server, according to a new report.

The mobile bills from AT&T, Verizon and T-Mobile subscribers were in a “storage bucket” containing at least 261,300 documents, “the vast majority of which were phone bills belonging to cell subscribers dating as far back as 2015,” reported the technology news website TechCrunch Wednesday. “But the bucket, hosted on Amazon Web Services (AWS), was not protected with a password, allowing anyone to access the data inside. It’s not known how long the bucket was exposed.”

Sprint collected the documents, which contain names, addresses, phone numbers, and in many cases call histories, to persuade cell subscribers to change carriers, TechCrunch said.

The data were initially discovered by a British company, Fidus Information Security, but not the owner. Fidus told Amazon, whose Amazon Web Services was hosting the bucket, and the bucket was shut down, TechCrunch reported. A bit of cyber sleuthing on TechCrunch’s part revealed the marketing company involved, Deardorff Communications.

“I have launched an internal investigation to determine the root cause of this issue, and we are also reviewing our policies and procedures to make sure something like this doesn’t happen again,” company president Jeff Deardorff told TechCrunch.

As of Wednesday, the mobile carriers had not commented, and it was not clear whether any of the parties involved planned to notify the people whose information was compromised.

It’s the second security breach to come to light recently. Last month millions of text messages were found exposed on a server in Texas.

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