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Grindr's ad-data sharing earned Norway's biggest privacy fine — and it stuck

Norway fined Grindr NOK 65M for sharing users' data with ad partners without valid consent; the fine survived every appeal.

Grindr · 2021-12-13

What happened

On 13 December 2021, Norway's data protection authority, Datatilsynet, fined the dating app Grindr NOK 65 million — about €6.5 million — for sharing users' personal data with third parties for behavioural advertising without a valid legal basis. The fine was the largest the Norwegian regulator had ever imposed.

The investigation began after complaints from the Norwegian Consumer Council in 2020. Datatilsynet found that Grindr disclosed data including precise GPS location, IP address, mobile advertising ID, age and gender to an unknown number of advertising partners, and that the 'consent' it collected was not valid under the GDPR: users had no real choice during registration, and the sharing was buried in the privacy policy.

Compounding the problem, the fact that someone is a Grindr user was treated as revealing a non-majority sexual orientation — a special category of personal data under GDPR Article 9. The unlawful sharing ran from about May 2018 until April 2020, and the regulator treated it as intentional. The consent mechanisms were found to breach GDPR Articles 6 and 9.

Grindr appealed. The Norwegian Personal Data Appeals Board confirmed the NOK 65 million fine in September 2023, and the Oslo courts rejected Grindr's annulment actions. On 21 October 2025 the Court of Appeal again upheld the fine, this time around €5.5 million, ending the legal fight.

Why it happened

  • Grindr built its free model on monetising user data through behavioural advertising, and treated a checkbox in the registration flow as consent for sharing sensitive data.
  • It ran the scheme for close to two years without a defensible legal basis, then spent years appealing a fine it had no credible GDPR defence against.
What it costNOK 65M (≈€6.5M) GDPR fine, upheld through appealscostly

The lesson

A consent checkbox is not consent. When the data you share reveals something sensitive, the legal basis has to be real — and the fine can follow you for years.

Aftermath

The case became a European reference point for how regulators treat behavioural advertising and special-category data. It followed the recognition that the fact of using a dating app can itself reveal sexual orientation, and pushed the industry toward clearer consent mechanisms. For Grindr, the fight ended with the full penalties intact after four years of appeals.

Sources

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