Cook County Health and Hospitals System Data Breach (2017)

TThe federal government is investigating a security lapse that exposed the personal information of more than 700 patients at Cook County Health and Hospitals System this year. The hospital system publicly acknowledged the incident in a news release in October, saying that it was notified by Experian Health in August that Experian mistakenly sent patient information to other health care facilities during a computer system upgrade in March. That information included names, account numbers, medical record numbers and birthdays. Addresses, Social Security numbers and clinical information were not exposed in the incident, according to the hospital system.