An anonymous reader writes "The Washington Post reports that a central campus database at UCLA containing the personal information (including SSNs) of about 800,000 UCLA affiliates has been compromised for possibly over a year. The data may have been available to hackers since October 2005 until November 21, 2006, when the breach was finally detected and blocked. Several other UC campuses have also been involved in significant data security incidents over the past few years." From the article: "'To my knowledge, it's absolutely one of the largest,' Rodney Petersen, security task force coordinator for Educause, a nonprofit higher education association, told the Los Angeles Times. Petersen said that in a Educause survey release in October, about a quarter of 400 colleges said that over the previous 12 months, they had experienced a security incident in which confidential information was compromised, the newspaper reported."