US Military Networks Shift to Data-Centric Security
The military is ditching static perimeters to maintain connectivity under daily electronic jamming on the Korean Peninsula.
Updated on Oct. 28, 2026 in Cybersecurity
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US Forces Korea is abandoning legacy perimeter-based network security in favor of data-centric systems after facing consistent daily electronic jamming on the Korean Peninsula. This shift, outlined in the new "How the Army Fights" strategy, replaces isolated network pipes with tagged, resilient communications.
Why it matters
Traditional hardened perimeters have left military formations operationally blind during combat, as advanced electronic warfare continues to disrupt GPS and network connectivity. Moving to data-centric security aims to maintain command and control even as adversaries increase jamming capabilities against distributed forces.
US forces are replacing fixed-perimeter network security with a decentralized architecture comprising high-frequency networks, low-Earth orbit satellite links, and terrestrial mesh networks. Data-centric security works by tagging individual payloads, ensuring information remains accessible even if specific network pipes are compromised or jammed.
The players
US Forces Korea
The sub-unified combatant command responsible for maintaining military readiness and security on the Korean Peninsula.
Gen. Xavier Brunson
The commander of US Forces Korea who is overseeing the transition to resilient, data-centric network communications.
The details
The previous model relied on closed, perimeter-based networks that isolated units and inhibited data flow during intense jamming events. By transitioning to data-centric security, military command can now authenticate and share information packets independently of the underlying delivery infrastructure. This approach mitigates the operational blindness caused by adversaries currently utilizing advanced electronic attack capabilities, including active GPS jamming in the West Sea.
Timeline
The US military has relied on perimeter-based network security for the last 30 years.
Gen. Xavier Brunson detailed the strategic transition on October 27, 2026.
The Tech Race
This transition marks a departure from the static perimeter defenses standard in the last 30 years of military operations. It directly addresses the technical vulnerability of networks that last only 48 hours under modern electronic warfare conditions.
The change directly affects how information is shared between allied partner nations and distributed military units operating in high-interference environments. While these changes are operational, the shift to data-tagging signifies a broader move toward resilient, software-defined infrastructure in contested sectors.
The takeaway
The move toward data-centric security aims to eliminate the 48-hour failure window inherent in legacy perimeter models. Observers should track the integration of these mesh and satellite networks into existing command structures as the Army executes the doctrines found in "How the Army Fights."
Further reading
Learn more about the latest developments in military information systems at Cybersecurity.
Source note: This article includes information reported by Breaking Defense.
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