The university says social security numbers, health insurance information and non-treatment medical records dating back to 1999 were stolen.
The databases also included personal information of parents and spouses who used the school's health services, and Mills College students who used Berkeley's health services.
Officials say personal medical records -- including patient diagnoses, treatments and therapies -- were not compromised.
The server breach occurred Oct. 6, 2008, and lasted until April 9.
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