Leaked documents obtained by The Intercept detail ECHOTRIBBLE, a nascent US Army Cyber Command program designed to deploy agentic AI that autonomously spreads across networks to find and eliminate targets1. The program, still in the whitepaper phase, represents the military's push to weaponize autonomous AI agents for offensive cyber operations3.
ECHOTRIBBLE's origins
Documents circulated among vendors show US Army Cyber Command is seeking private-sector help to develop the agentic command-and-control framework. The program is housed not in a classified DARPA initiative but under the defense nonprofit Cyber Fusion Innovation Center, which hosted a fully virtual assessment event earlier in October 2026 for the Agentic C2 Framework Tool, the formal name for ECHOTRIBBLE. That event generated 65 whitepapers, of which five were selected for presentations to be judged by an assessment team.
Secretary of Defense Pete Hegseth signaled interest in this direction as early as January 2026. US Army Cyber Command did not respond to The Intercept's request for comment.
Broader agentic buildout
ECHOTRIBBLE sits alongside a wider effort by US Army Cyber Command to stand up an agentic workforce for cyber operations. The command launched Task Force Lexington earlier in 2026 to develop AI agents capable of performing various cyber functions2. The task force initially created four cyber work roles for AI agents and has since expanded that number, building out a complete agentic cyber protection team.
"Since August, the biggest thing we have done is complete the cyber protection team. We now have all the work roles inside of a cyber protection team mapped out at this point, and learning their trade," Lt. Gen. Christopher Eubank, who leads US Army Cyber Command, told reporters at the Association of the U.S. Army's annual conference in Washington. Those roles include analytic support officers, data engineers, network analysts, and host analysts.
ANALYSIS The two programs reflect distinct but complementary ambitions: Task Force Lexington focuses on defensive cyber protection team roles, while ECHOTRIBBLE targets offensive operations with agents designed to navigate adversary infrastructure autonomously. Together they mark US Army Cyber Command's bet that agentic AI can fill both sides of the cyber mission.
No AI-powered hacking tools have demonstrably emerged from ECHOTRIBBLE yet, and the program remains at the vendor-solicitation and whitepaper stage.