Grindr, a gay dating app, is facing a mass data protection lawsuit in the UK.

Approximately 670 users have joined the lawsuit, with the potential for thousands more to be implicated.

The lawsuit claims unauthorized sharing of sensitive data, including HIV status, with third parties for commercial use.

Austen Hays, the law firm representing the users, is seeking compensation for the distress caused by the data breach.

Grindr has responded, denying that it ever shared user-reported health information for commercial purposes and plans to vigorously defend against the claims.