Ransomware.live listed NorthShore Health Centers as a U.S. victim associated with the Insomnia ransomware group. The listing identified an attack date of September 7, 2026, but did not provide an official statement from NorthShore Health Centers or a regulator-confirmed breach notice.
The available report does not state how many NorthShore Health Centers individuals were affected or what information was involved. It does not confirm exposure of Social Security numbers, medical information, financial information, or other data types. Official notification dates and further incident details have not been publicly confirmed in the available sources.