Industry

European Data Protection Board Issues First Penalties Over Unsanitized AI Training Logs

By Reporting from New York

European Data Protection Board Issues First Penalties Over Unsanitized AI Training Logs
Photo via Wikimedia Commons

NEW YORK — What happened: On September 25, 2026, the European Data Protection Board (EDPB) announced binding enforcement actions against two enterprise software providers. Regulators found that user interaction logs and customer support chat transcripts were fed directly into continuous retraining pipelines without adequate automated scrubbing of personal identifiable information (PII).

Why it matters: Modern software platforms increasingly rely on ongoing telemetry to fine-tune specialized AI models. However, under privacy frameworks like GDPR, collecting user communications for model optimization requires explicit user opt-in and strict data anonymization before the data enters training databases.

Deep dive: The regulatory investigation revealed that while the companies used pattern-matching filters to strip standard fields like email addresses and credit card numbers, complex user-submitted text containing names, addresses, and internal corporate credentials remained intact. Researchers successfully demonstrated that structured prompts could trick the retrained models into reciting fragments of sensitive customer interactions.

Report check: Regulatory documents confirm that fines total €140 million across both organizations. Claims by privacy advocacy groups that financial payment records were extracted remain unverified, as audits only proved exposure of text logs.

Open questions: How will cloud AI vendors adapt their automated dataset filtering without degrading the context necessary for high-accuracy domain models?