The Park Hill School District says a data security breach might have compromised personal information of 10,210 current and former employees and students.
The suburban Kansas City district announced Tuesday that the information included Social Security numbers, student records, personnel information and employee evaluations.
Superintendent Scott Springston says no evidence of identity theft of misuse of data has been found since the breach occurred in January or February.
The district said a worker downloaded records from a work computer onto a hard drive. The worker, who left the district shortly afterward, connected the hard drive to a home network, making the data accessible online.
The Kansas City Star reports the district didn't learn about the breach until April 1 and access to the records was removed on April 5.