2026 Kaniksu Community Health — patient letters after Aesto Health AWS archive incident
Data compromised
Patient personal and health information maintained in Aesto’s electronic health data management / archive platform (elements per Aesto/Kaniksu notice variables)
Technical writeup
Verified California AG substitute/individual notice template for Kaniksu Community Health — September 2026 reporting window. Kaniksu notified patients that vendor Aesto experienced a December 18, 2025 (window from Dec 2) security event on its health-data platform and informed Kaniksu on June 26, 2026. This is a covered-entity notice arising from the broader Aesto Health AWS incident already cataloged at ~9.54M HHS-impacted individuals. Facility-specific count not stated in the CA sample; recordsAffected 0; companyConfirmed true.
Root cause
Vendor Aesto Health AWS archive incident December 2–18, 2025; Kaniksu notified by Aesto on or about June 26, 2026