AOK

AOK is a statutory health insurance provider in Germany. It offers health insurance coverage to employees, retirees, and their families. Benefits include medical treatment, sickness pay, maternity benefits, preventive care, and rehabilitation services. It operates under public law and is part of the AOK Bundesverband, which coordinates the regional funds. The organisation facilitates data exchange with healthcare providers, pharmacies, and other partners through secure IT systems.

AOK collectively serves a substantial portion of the German population. Numerous regional funds cover different states across the country. It is one of the largest statutory health insurance groups in Germany. Its headquarters are located in Germany (exact city not specified in the prompt). The organisation employs thousands of staff across its regional entities to manage member services, claims processing, and health promotion programs.

AOK holds a statutory mandate under the German Social Code Book V, giving it a public‑service role in the healthcare system. This mandate requires adherence to strict data protection and security standards. The incident on 31 May 2023, where a vulnerability in the MOVEit Transfer software exposed several AOK funds to unauthorized access, highlighted its reliance on external data‑exchange platforms. The flaw prompted an immediate shutdown of external connections, an investigation into possible data access, and notification to the national cybersecurity authority. AOK is organized as a federation of independent regional funds under the umbrella of the AOK Bundesverband. The Bundesverband is owned by its member funds rather than a private parent company.