"Selling your old phone once you upgrade to a fancier model can be like handing over your diaries," IT experts were quoted as saying Wednesday by media.

"All sorts of sensitive information pile up inside our cell phones, and deleting it may be more difficult than you think," they added.

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-dollar 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 meters' high.

"We found just a mountain of personal and corporate data," said Nick Magliato, Trust Digital's chief executive.

Many of the phones were owned personally by the sellers but crammed with sensitive corporate information, underscoring the blurring of work and home. "They don't come with a warning label that says, 'Be careful.' The data on these phones is very important," Magliato said.

Experts said giving away an old phone is commonplace. Consumers upgrade their cell phones on average about every 18 months.

(Xinhua News Agency August 31, 2006)