Stanford University is advising students and other users of its computer system to change their passwords after the school discovered a security breach of its information technology infrastructure.
School officials said they are still trying to determine the scope of the breach and are working with IT consultants and law enforcement agencies in the investigation.
However, they said, it does not appear any personal health information, financial information or Social Security numbers were accessed.
"In recent months, a range of large organizations have reported attacks involving their information systems," university officials said in a statement. "Preliminary indications are that the breach at Stanford bears many similarities to these incidents."
The school is asking everyone with a SUNet, or Stanford University Network, ID to change their passwords.
University officials said they may ask users to change their passwords again as they learn more about the breach.