Cellphones retain their memories, just like computers

We have all assumed that cellphone memories, when erased, are gone forever. Cellphones, however, run off computer chips, and their memories remain in deleted files, just like computers. Experts can recreate from the memory text messages and numbers dialed. This was on AP and CNN last week (“Cell phones won’t keep your secrets“) and in wire service stories that hit most local papers on the weekend.

Selling your old phone once you upgrade to a fancier model can be like handing over your diaries. All sorts of sensitive information pile up inside our cell phones, and deleting it may be more difficult than you think.

A popular practice among sellers, resetting the phone, often means sensitive information appears to have been erased. But it can be resurrected using specialized yet inexpensive software found on the Internet.

A company, Trust Digital of McLean, Virginia, bought 10 different phones on eBay this summer to test phone-security tools it sells for businesses. The phones all were fairly sophisticated models capable of working with corporate e-mail systems.

Curious software experts at Trust Digital resurrected information on nearly all the used phones, including the racy exchanges between guarded lovers.

The other phones contained:

•One company’s plans to win a multimillion-dollar federal transportation contract.

•E-mails about another firm’s $50,000 payment for a software license.

•Bank accounts and passwords.

•Details of prescriptions and receipts for one worker’s utility payments.

The recovered information was equal to 27,000 pages — a stack of printouts 8 feet high.

. . .

“The tools are out there” for hackers and thieves to rummage through deleted data on used phones, Trust Digital’s chief technology officer, Norm Laudermilch, said. “It definitely does not take a Ph.D.”

Now that the word is out, expect law enforcement to start utilizing this new investigative tool. A suspected drug dealer’s telephone may have a gold mine of incriminating information.

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