US Defense Secretary Pete Hegseth has instituted a strict ban barring all Pentagon staff and Department of War personnel from using undisclosed information to place financial wagers on upcoming military actions, operations, and geopolitical outcomes, explicitly targeting the growing popularity of decentralized prediction market platforms such as Kalshi and Polymarket.
In a formal memorandum sent to senior Pentagon leadership and various defense agencies on Tuesday, Hegseth declared that all personnel are strictly prohibited from engaging in any financial transactions that leverage nonpublic information. The sweeping directive encompasses both classified intelligence and sensitive unclassified information, closing potential legal and ethical loopholes regarding how defense workers interact with speculative financial products.
"Make no mistake why this matters. Our enemies watch movements in these markets," Hegseth wrote in the memo, emphasizing the severe national security implications of speculative financial activity tied to active military planning. "The lives of our Service members often depend on the enemy not knowing what is coming."
The Defense Secretary further underscored that the risks extend far beyond immediate operational security threats, warning that financial incentives can actively corrupt military and logistical judgment.
"Beyond operational security, financial stakes can warp judgment. A logistician with money riding on a strike date has an interest in that date. An analyst with a position on an outcome has an interest in that outcome," he noted, highlighting the inherent conflict of interest introduced when national defense professionals hold direct financial stakes in the outcomes of the operations they plan, analyze, or execute.
This decisive directive follows a high-profile criminal case brought in April, when a US Army soldier was formally charged for allegedly capitalizing on classified insights. The soldier, identified as Gannon Ken Van Dyke, allegedly used sensitive, classified information regarding the sophisticated operation to capture Venezuelan leader Nicolás Maduro to secure more than $400,000 in profits on the prediction market platform Polymarket.
Federal prosecutors allege that Van Dyke was directly involved in the planning and execution phases of the operation against the Venezuelan leadership. Armed with this advanced, nonpublic operational knowledge, he allegedly turned his insider access into a personal financial windfall by wagering heavily on specific outcomes related to Maduro’s removal from power. Legal proceedings in that case are ongoing, and Van Dyke has formally pleaded not guilty to all charges brought against him.
The American case is part of a broader, emerging international phenomenon involving military personnel and sensitive state intelligence intersecting with commercial forecasting platforms. In February, international security concerns were amplified when Israeli authorities successfully arrested and indicted both a military reservist and an un-named civilian. According to the charges, the pair allegedly utilized classified state intelligence to place lucrative bets on Polymarket regarding impending Israeli military strikes targeting Iran.
These converging incidents have sparked intense regulatory and legal debates across global jurisdictions, particularly regarding the intersection of decentralized finance, prediction markets, and national security protocols. Agencies such as the Commodity Futures Trading Commission (CFTC) and federal prosecutors have increasingly found themselves sparring over the legal interpretation, oversight, and regulatory boundaries of prediction markets, especially when insider trading principles collide with platforms that allow users to speculate on real-world political and military events.
With Hegseth’s newly issued directive, the Pentagon is drawing a hard line to insulate the American military apparatus from the vulnerabilities exposed by the rise of commercial prediction markets, signaling zero tolerance for personnel who leverage sensitive state secrets for private financial gain.
