By HFT Staff

NorthShore Health Centers is investigating a cybersecurity incident that may have exposed personal and protected health information belonging to certain individuals. 

The organization became aware of suspicious activity on its computer network on or around Aug. 10, 2026, and took steps to secure its systems. An investigation conducted with assistance from third-party cybersecurity and forensic specialists determined that an unauthorized actor accessed portions of NorthShore’s network between Aug. 10 and Aug. 11. 

The investigation remains ongoing as NorthShore works to identify affected individuals and determine what information may have been compromised. Potentially exposed information varies by individual and may include names, Social Security numbers, medical treatment or condition information and health insurance information. 

NorthShore said it plans to mail notification letters to individuals whose information was involved once the review is complete and affected individuals have been identified. 

Following discovery of the incident, NorthShore implemented additional safeguards and began reviewing its data privacy and security policies and procedures. The organization said it will notify affected individuals and provide additional support once the investigation identifies those impacted.