Congress Eyes Ban on Crypto Prediction Markets Over National Security Concerns
Congress is considering banning crypto prediction markets after investigators found statistically impossible betting patterns. This follows concerns that these platforms could be used for insider trading or manipulating public perception.

Congress is exploring a ban on crypto prediction markets, citing national security risks. Investigators from Bubblemaps, led by Nicolas Vaiman, discovered 80 bets on Polymarket with a 98% win rate, which Vaiman claims is statistically impossible to achieve. This has raised alarms about potential market manipulation and insider trading.
The findings suggest that these platforms could be exploited to spread misinformation or influence public opinion. For instance, bets on geopolitical events or corporate earnings could be used to manipulate markets or create false narratives. Congress is now considering legislation to address these risks, with some lawmakers arguing that these markets pose a threat to financial stability.
For everyday users, this could mean the end of participating in prediction markets on crypto platforms. These markets have been popular for betting on everything from election outcomes to sports results. If banned, users would lose access to these speculative betting opportunities, which have been a niche but growing part of the crypto ecosystem.
If Congress moves forward with the ban, it could be implemented as early as next year. Users should watch for legislative updates and consider the potential impact on their investments in prediction market platforms. Read more → https://www.coindesk.com/business/2026/05/21/crypto-prediction-markets-are-turning-into-dangerous-national-security-risks-and-congress-wants-to-ban-them