US homeland security officials say security measures for the upcoming World Cup are being strengthened across the tournament’s 11 host cities, while officials also warn that “lone wolf” attacks remain a concern. Department of Homeland Security chief Markwayne Mullin says the matches will be “very secure,” indicating heightened readiness for possible threats. At the same time, Mullin acknowledges that attacks carried out by individuals acting independently are difficult to predict and can still pose a risk, even with enhanced planning and protective measures in place. The statements reported by both outlets frame the alert as part of ongoing risk management for large international events. No details are provided in the reports about specific credible threats, named individuals, or particular locations beyond the scope of the 11 US host cities. Overall, the information suggests the US is coordinating security efforts to protect spectators and events while maintaining vigilance for potential lone-actor incidents.