SAN DIEGO -- More than 380,000 students, alumni, applicants and employees of UC San Diego were at risk for identity theft after hackers accessed a university server containing names, driver's license and Social Security numbers.

There was no evidence hackers stole personal information, but under state law the university was required to notify those affected that security had been breached, school officials said Thursday.

An unauthorized user broke into four computers in the Business and Financial Services Department.

The break-in was discovered during the weekend of April 16 and UCSD began sending notification letters Wednesday.