The FBI and other U.S. agencies said on Tuesday they were investigating a website that posted financial and personal information about first lady Michelle Obama, Vice President Joe Biden, and other government figures as well as celebrities including singers Beyonce and Jay-Z.
It was unclear how much of the data, which first appeared on the website on Monday, was accurate or who posted it.
The site listed social security numbers, telephone numbers, addresses and credit reports apparently belonging to 18 prominent Americans. At least some of the telephone numbers were inaccurate.
The website, whose first page portrayed a mysterious-looking woman wearing heavy eye make-up with one finger over her lips, was still accessible on Tuesday although some links relating to individuals could not be opened.
Others listed on the page included former Secretary of State Hillary Clinton and actors Ashton Kutcher and Arnold Schwarzenegger.
The phone number given for Biden on the website turned out to be that of a store in Delaware, and one given for Kutcher was for a New York City accounting firm, raising questions about how much of the other information posted was accurate.
Presented by Adam Justice