France’s national weather forecasting office has filed a police complaint after an unusual surge in bets on the Polymarket platform.
The agency, Météo-France, detected suspicious activity when temperature readings at Charles de Gaulle International Airport suddenly rose by several degrees within minutes.
The abnormal data was flagged as a potential manipulation attempt linked to wagering on weather outcomes.
Polymarket, a decentralized prediction market, allows users to bet on real-world events, including weather forecasts.
Météo-France believes the data tampering was intended to influence betting outcomes on the platform.
The office reported the incident to French law enforcement to investigate the source of the interference.
Weather data integrity is critical for aviation safety, agriculture, and public planning.
This case highlights growing concerns about the vulnerability of real-time data to financial speculation.
Authorities are now working to secure sensor networks against similar future threats.
