France's data protection authority, the Commission nationale de l'informatique et des libertés, issued a 3 million euro fine to mobile application developer Voodoo over alleged nonconsensual user tracking. The CNIL's investigation found the company applies a technical identifier that "processes the information linked to the browsing habits for advertising purposes" when a Voodoo app is downloaded from Apple's App Store. Voodoo allegedly applies the tracker despite user opt-outs via its consent mechanism.