CNIL fines IQVIA Operations France €5M for health data warehouse security failures: no MFA, no log monitoring, no network segmentation

France's CNIL fined IQVIA Operations France €5 million on 26 May 2026 for systematic GDPR violations across two authorised health data warehouses, LRX (fed by ~14,000 pharmacies) and EMR (fed by thousands of GPs) (CNIL, 2026-05-28). The CNIL enumerated five control failures: (1) IQVIA operated the warehouses outside the scope of its CNIL authorizations — deliberations 2018-289 and 2021-015 approved specific study types, and IQVIA conducted studies beyond those terms (Art. 66 of the French Data Protection Act); (2) patients were not informed that IQVIA acted as a data controller for their prescription data, violating GDPR Art. 14 information obligations; (3) multi-factor authentication was absent from all warehouse access paths; (4) no automated connection-log monitoring or alerting was in place — IQVIA confirmed retrospective deployment only after the CNIL investigation commenced; (5) no network segmentation between the health data warehouse and other IQVIA corporate infrastructure. The fine magnitude reflects the scope — "several tens of millions" of individuals — and IQVIA's market position. A compliance order with a €10,000/day penalty period accompanies the fine. For defenders this ruling operationalises baseline controls now explicitly expected for health data warehouse operations: MFA on all warehouse access paths, automated log alerting, network segmentation between sensitive-data stores and corporate infrastructure, and strict compliance with CNIL authorization scope for each study type conducted.