"Based on the review of impacted files to date, the Company believes those files contain personal information, including social security numbers, protected health information and/or other personal information, of at least 8 to 11 million individuals to whom the Company anticipates providing notice of the incident. The Company has been notifying its customers as well as federal and state regulators, and it will provide appropriate notifications to individuals affected by this incident. In addition, individuals receiving notice will be offered free credit monitoring and identity restoration services."
https://www.sec.gov/Archives/edgar/data/1032220/000103222023000061/mms-20230726.htm