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2 weeks ago

FNAC DARTY Fined €7M for Ignoring User Consent Refusals in Mobile App Tracking

Written by AI from the linked story. Not reviewed by an editor. How this works

FNAC DARTY continued tracking user activity — including product views and purchases — within its mobile app even after users explicitly opted out via the 'Continue without accepting' consent banner. This represents a fundamental failure of privacy-by-design principles, where technical implementation did not honour the legal consent mechanism presented to users. The breach affected a substantial number of individuals, amplifying the severity and attracting a €7 million combined fine from France's CNIL. This case demonstrates that displaying a consent banner is not sufficient — organisations must ensure the underlying data collection systems are technically enforcing users' choices in real time.

Tactical Insight

Immediate actions

  • Audit all data collection and tracking mechanisms in mobile and web applications to verify they halt upon user consent refusal.
  • Conduct a technical reconciliation between consent management platform (CMP) outputs and actual data flows to identify discrepancies.

Long-term improvements

  • Embed privacy-by-design principles into the software development lifecycle so consent states are enforced at the code level, not just at the UI layer.
  • Establish a regular data flow mapping exercise to document all tracking technologies and their dependency on user consent signals.
  • Appoint or empower a Data Protection Officer (DPO) to perform periodic technical audits of consent enforcement across all platforms.

Detection & monitoring measures

  • Implement automated testing in CI/CD pipelines that validates tracking is suppressed when consent is refused before any release goes live.
  • Monitor third-party SDKs and analytics libraries for updates that could inadvertently re-enable tracking regardless of consent status.

Back this up with a control

All controls and vendors

Training helps people spot this. These controls make the attack fail even on the day someone does not.