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, with a focus on integrating Zero Trust (ZT) security capabilities into tactical network architectures. The objective is to enhance data protection against emerging cyber threats in operational environments that may experience denied, degraded, intermittent, or limited communications, moving away from traditional security models to a ZT approach that emphasizes continuous risk assessment and verification. Interested parties are invited to submit their capabilities and relevant technology information by March 19, 2025, with the understanding that this Request for Information (RFI) does not constitute a solicitation and that costs incurred will not be reimbursed. For further inquiries, respondents can contact Wendy Choi at usarmy.apg.devcom-c5isr.mbx.esi-bus-ops-acq-rfi@army.mil.