AltaMed Health Services Corporation notified the California Attorney General of an incident where an unauthorized individual accessed an email account between August 5 and August 9, 2024. AltaMed became aware of suspicious activity on August 9, 2024, and contained the incident by disconnecting systems. The investigation, finalized on April 16, 2025, determined that names and potentially protected health information were involved. No evidence of fraudulent use was found. AltaMed enhanced security protocols and offered 24 months of credit monitoring to affected individuals.