Pentagon Chief Bans Insider Bets on Military Outcomes

The U.S. Department of Defense has moved to curb a growing financial trend among military personnel that could inadvertently leak operational details to foreign adversaries. A new internal directive, issued by Defense Secretary Pete Hegseth, explicitly warns staff against leveraging nonpublic information for personal financial gain in betting markets.

The memo, dated October 20 and distributed to senior Pentagon leadership, Combatant Command leaders, and Defense Department field activity directors, establishes a broad prohibition. It applies to all financial platforms, including traditional betting services and emerging prediction markets such as Polymarket and Kalshi. The rule stipulates that no Defense Department personnel may execute a financial transaction based on nonpublic information, whether that data is classified or merely unclassified. The scope is wide, covering not just active-duty service members but also intelligence professionals and civilian employees within the department.

Hegseth argued that these wagers create detectable patterns that hostile nations can exploit. In the document, he noted that enemies monitor movements in these markets. When a service member or civilian places a bet on a military outcome, it generates a signal. Hegseth explained that hostile foreign intelligence services can aggregate and correlate these signals to anticipate American movements, targets, and timing. He emphasized that the lives of troops often depend on the enemy not knowing what is coming next, and that soldiers deserve a force that protects them rather than one that exposes them to risk for personal profit.

The guidance comes amid recent high-profile incidents involving insider trading in prediction markets. In April, a U.S. Army soldier was arrested and charged with using confidential information to place bets on Polymarket regarding the timing of the military’s capture of Venezuelan President Nicolás Maduro. That specific case involved $410,000 in wagers. Additionally, an August report by the Anti-Corruption Data Collective identified 152 suspicious wallets that had placed longshot bets on military and defense markets. According to the report, those wallets won a combined total of $8 million.

The stakes for the military are now clearly defined as a matter of operational security rather than just personal finance. By treating betting as a potential security breach, the Pentagon aims to close a gap where private financial interest intersects with public military strategy. The directive serves as a formal reminder that every transaction made with nonpublic knowledge could serve as a beacon for foreign intelligence services, thereby endangering the personnel on the ground.