Rocklin Unified School District reported a data breach affecting student and employee records. The incident occurred between December 28, 2021, and January 8, 2022. The breach involved a third-party service provider, Illuminate Education. The specific nature of the unauthorized access and the types of data compromised are not detailed in the provided filing metadata, though the attachment filename suggests a notice was sent. No specific count of affected individuals or discovery date is provided in the visible metadata.