According to @aaronjmars, Polymarket's Paris weather prediction market has recently been suspected of physical manipulation.
A user exploited an unattended Météo France temperature sensor near the runway at Paris Charles de Gaulle Airport (CDG), briefly raising the temperature around the sensor with a portable heating device (suspected to be a hairdryer). The user purchased prediction outcomes with extremely low prices and very low probabilities (such as a temperature reaching 22°C) twice on April 6 and April 15, then caused the sensor readings to spike through physical interference, triggering the market to determine their victory, resulting in a total profit of about $34,000. Subsequently, the French meteorological agency discovered and filed charges against him.
According to @aaronjmars, Polymarket's Paris weather prediction market has recently been suspected of physical manipulation.
A user exploited an unattended Météo France temperature sensor near the runway at Paris Charles de Gaulle Airport (CDG), briefly raising the temperature around the sensor with a portable heating device (suspected to be a hairdryer).
The user purchased prediction outcomes with extremely low prices and very low probabilities (such as a temperature reaching 22°C) twice on April 6 and April 15, then caused the sensor readings to spike through physical interference, triggering the market to determine their victory, resulting in a total profit of about $34,000.
Subsequently, the French meteorological agency discovered and filed charges against him.