SACRAMENTO, Calif. --
Personal information of about 9,000 current and former state employees was improperly copied and removed from state offices by a state employee, according to the California Department of Public Health.
The employee is on administrative leave pending a full investigation.
The security breach involved individuals names, birth dates and addresses from documents. The department's investigation found that the copied information includes workers compensation files that were copied onto a private hard drive.
A state security detection system alerted officials of suspicious activity in early April, according to a news release. The department has implemented more safeguard to protect information.
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