From CNN:
The University of California, Los Angeles alerted about 800,000 current and former students, faculty and staff on Tuesday that their names and certain personal information were exposed after a hacker broke into a campus computer system.
Only a small percentage — “far less than 5 percent” — of the records in the database were actually accessed, UCLA spokesman Jim Davis told The Associated Press.
Still, it was one of the largest such breaches involving a U.S. higher education institution.
The attacks in October 2005 and ended November 21 of this year, when computer security technicians noticed suspicious database queries, according to a statement posted on a school Web site set up to answer questions about the theft.