Kalshi hit with class action over alleged data sharing with Google and LinkedIn
A California man filed a proposed federal class action lawsuit against Kalshi Inc. on June 16, accusing the prediction market platform of illegally sharing users' private data with Google and LinkedIn. The suit alleges Kalshi disclosed user behavior and certain financial information to the two tech companies through its analytics tools, targeting the firm's data handling practices. The case was filed in federal court and reported June 16 across multiple outlets. Kalshi has not publicly responded to the allegations. The lawsuit adds a privacy front to the platform's existing legal docket, which already includes fights with states over gambling classifications, tribal land access, and a Kentucky excise tax.
Kalshi must now defend user privacy practices in federal court while simultaneously fighting state gambling claims and a Kentucky tax challenge. A broad ruling on financial data disclosure could force contract rewrites across the sector's analytics and ad-tech stacks.
Fourth class action against a prediction market operator in recent coverage, after Robinhood's betting-masking suit and twin tribal challenges against Kalshi and Polymarket.