Conducted by a government-funded non-profit in Norway, the report was released on Tuesday. It found that popular dating apps spread personal user information to marketing companies.

Such practices could violate privacy laws Finn Myrstad, Report Author, via ‘NYT’. E.U. data protection laws prohibit the collection of some personal information, including sexual orientation, religion and ethnicity.

Grindr — the most popular gay dating app — did not comment on the report directly. The parent company of Tinder and OkCupid stated that it has complied with privacy laws.