The White House has issued a warning to its staff regarding the use of insider information related to policy changes for trading in prediction markets. According to Foresight News, this warning was released on March 24, coinciding with U.S. President Donald Trump's announcement to halt actions against Iran. Prior to the policy change announcement, unusual trading activity was observed, with a significant increase in oil futures trading volume over a short period. Additionally, certain accounts on Polymarket profited from accurately predicting related events, raising concerns about information asymmetry. The White House confirmed the issuance of the warning and emphasized that decisions are made with the public interest in mind.