An unauthorized party accessed certain employee email accounts of Contra Costa County in a computer breach.
The emails had the attachments containing information including Social Security numbers; driver's license or state-issued identification numbers; financial account numbers; passport numbers; and medical information and/or health insurance information of certain county employees, as well as individuals who communicated with the county's Employment and Human Services Department.
The County officials investigated the incident and notified the impacted individuals and offered them complimentary credit monitoring.
"id": "CON223718522",
"linkid": "contra-costa-county",
"type": "Breach",
"date": "08/2021",
"severity": "80",
"impact": "3",
"explanation": "Attack with significant impact with internal employee data leaks"