A security researcher discovered that tl;dv, an AI meeting recording platform with 2 million users, has a major vulnerability where any authenticated user can access all meetings across every account due to lack of tenant isolation in their Firestore database. The researcher could join live calls uninvited and accessed 181,874 meeting records from government, university, and corporate users across 35,000 domains. Despite reporting this in January 2026, the company hasn't responded or fixed the issue after six months of follow-ups.