The Department of Defense, specifically the U.S. Army Combat Capabilities Development Command (DEVCOM), is seeking information from businesses regarding Tactical Data in Use Security, focusing on the integration of Zero Trust (ZT) capabilities into tactical network architectures. The objective is to enhance data protection against emerging cyber threats in environments characterized by denied, degraded, intermittent, or limited communications, moving away from traditional security models that assume trust within network perimeters. Interested parties are invited to submit responses detailing their capabilities in protecting critical data, demonstrating relevant technologies, and providing insights on Technology Readiness Levels and associated risks, with submissions due by March 19, 2025. For further inquiries, interested companies can contact the primary point of contact via email at usarmy.apg.devcom-c5isr.mbx.esi-bus-ops-acq-rfi@army.mil.