Arizona Data Breaches — Page 2

Chrysler experienced a data breach in late 2025, with the Everest ransomware group claiming to have stolen over 1TB of data affecting customers nationwide.

SimonMed Imaging experienced a data breach in 2025 that affected over 1.2 million individuals. This incident was caused by a ransomware attack linked to a vendor security incident.

RV Country, Inc. reported a regulator-confirmed data breach in 2024, with November 15, 2024, identified as the breach and discovery date. The available filing does not disclose the number of affected individuals or the types of information involved.

A data incident involving Medicare.gov accounts operated by the Centers for Medicare & Medicaid Services (CMS) may have impacted approximately 103,000 Medicare beneficiaries, not Aetna, with notifications sent in 2023 or 2024.

Western Alliance Bank experienced a data breach in January 2025 that affected approximately 21,899 customers, which included exposure of Social Security numbers and financial account details.

Landmark Admin, LLC experienced a 2024 data breach affecting approximately 1.6 million people. Reported exposed information included Social Security numbers and financial information; the incident involved Landmark Admin’s administration of information for Liberty Bankers Insurance Group and Accendo Insurance Company.

Medusind, Inc. experienced a regulator-confirmed data breach on December 29, 2023, involving personal, medical, insurance, payment, and government-identification information. The number of affected individuals has not been publicly identified in the sources reviewed.