PolyBeats, a prediction market channel under BlockBeats, identified a potential insider trading activity on Polymarket. An account, suspected of having insider information, invested $8,500 in the prediction that "Saudi Arabia will strike Iran before March 31," with the probability at 56% at the time. This occurred shortly before senior Israeli officials indicated an imminent Saudi attack on Iran, causing the prediction probability to rise to 75%. The account, registered only eight days ago, has a history of successful bets, including a $34,800 gain from predicting "the U.S. would not strike Iran" over seven days. On February 28, the account profited $37,500 by betting on "the U.S. or Israel striking that day," despite low probabilities. This activity suggests a pattern of informed betting, raising concerns about insider trading in prediction markets.