Bubblemaps investigators discovered 80 prediction market bets on Polymarket with a statistically impossible 98% win rate tied to U.S. military actions against Iran, prompting Congress to advance legislation banning war-related contracts on the platform. The investigation, made public in May, identified nine accounts that generated $2.4 million in profit on military operations, raising concerns that adversaries or insiders may be extracting geopolitical intelligence from betting patterns before public announcements.
How Insider Trading Exposed Polymarket’s Security Gap
Bubblemaps CEO Nicolas Vaiman flagged the Iran bets after analyzing blockchain transaction data and account behavior on Polymarket, a decentralized prediction market platform. The 80 contracts showed a 98% win rate, with smaller losing bets placed on February 20 potentially designed to avoid detection. The actual military strikes occurred on February 28, followed by the removal of Iran’s supreme leader and a ceasefire announcement. Vaiman stated the statistical accuracy was “impossible” under normal market conditions, suggesting either military insiders or foreign adversaries with advance knowledge placed the bets.
Scale of Military Betting Reveals Compliance Failures
Military-related prediction market contracts generated $1 billion in total bets this year, with the nine flagged accounts capturing $2.4 million in confirmed profit. A U.S. Army Green Beret, Master Sergeant Gannon Ken Van Dyke, was arrested for insider trading after profiting $400,000 on a Venezuela raid bet. Polymarket announced a partnership with Chainalysis, a blockchain compliance firm, approximately two weeks before the May 21 public disclosure, yet the platform claims its AI surveillance and forensic tools catch suspicious activity. The gap between detection capability and actual enforcement remains unresolved.
Congress Moves to Ban Geopolitical Prediction Markets
Rep. Mike Levin and Senator Adam Schiff introduced the DEATH BETS Act to prohibit war-related prediction market contracts entirely. Levin stated “the insider trading problem with prediction markets is bigger than any of us could have known.” Vaiman warned that betting patterns themselves function as intelligence signals: “Prediction markets are intelligence and information warfare tools.” During the Iran strikes, civilians reportedly checked Polymarket to decide whether to shelter in bunkers, turning market liquidity into a life-or-death safety signal. The bill addresses a structural vulnerability in decentralized markets where KYC gaps and VPN workarounds allow anonymous participation.
Unresolved Questions on Adversary Involvement
Bubblemaps has not confirmed whether the flagged bettors are U.S. military insiders, foreign state actors, or private traders with leaked information. Vaiman acknowledged “we have no proof these are military insiders or even Americans” despite the suspicious win rate. Polymarket stated “insider trading is not welcome on Polymarket, and those who attempt it will be identified,” but has not provided detailed responses to specific allegations. The DEATH BETS Act’s legislative status and enforcement timeline remain unclear, leaving the prediction market’s military betting infrastructure operational pending congressional action.
