T-Mobile's computer forensics and security team is actively investigating to determine how Ms. Hilton's information was obtained," the company said in a statement. "This includes the possibility that someone had access to one of Ms. Hilton's devices and/or knew her account password.

Paris Hilton seems to be having more trouble keeping her personal life personal, and this time the socialite has apparently exposed several A-list celebrities after the contents of her cell phone, including phone numbers of her friends, were published on the Internet.

A spokesman for tmobile confirmed Monday that information from Hilton's TMobile Sidekick has been posted online.

"TMobile's computer forensics and security team is actively investigating to determine how Ms. Hilton's information was obtained, " the company said in a statement. "This includes the possibility that someone had access to one of Ms. Hilton's devices and/or knew her account password."

The Sidekick allows owners to make phone calls, surf the Web, e-mail, instant message and take pictures, and uses an online server to store at least some information, including numbers. The Drudge Report said it confirmed the authenticity of many of the numbers and e-mail addresses, including those of rapper Eminem, actor Vin Diesel, actress Lindsay Lohan, singers Christina Aguilera and Ashlee Simpson, and tennis players Andy Roddick and Anna Kournikova. The information was allegedly posted on the Illmob.org Web site on Sunday, but is no longer accessible. The paris hilton has reportedly opened an investigation. The company declined to say when the breach had occurred or when it was discovered, citing an ongoing investigation paris hilton tmobile.

The revelation comes a month after paris hilton tmobile admitted that a hacker had gained access to the names and Social Security numbers of 400 paris hilton tmobile customers. The incident, which was discovered in late 2003, came to light after 21-year-old Nicolas Jacobsen was charged with the crime.

Jacobsen pleaded guilty Tuesday to one felony charge of accessing a protected computer and causing reckless damage. He is scheduled to be sentenced in May and faces a maximum possible sentence of five years imprisonment and a $250,000 fine.

Paris hilton tmobile

The caper had all the necessary ingredients to spark a media firestorm - a beautiful socialite-turned-reality TV star, embarrassing photographs and messages, and the personal contact information of several young music and Hollywood celebrities.

When hotel heiress Paris Hilton found out in February that her high-tech wireless phone had been taken over by hackers, many assumed that only a technical mastermind could have pulled off such a feat. But as it turns out, a hacker paris hilton tmobile involved in the privacy breach said, the Hilton saga began on a decidedly low-tech note - with a simple phone call.