{"ID":2874868,"CreatedAt":"2026-06-01T04:54:23.091178241Z","UpdatedAt":"2026-06-01T04:54:23.091178241Z","DeletedAt":null,"paper_url":"https://arxiv.org/abs/2509.03000","arxiv_id":"2509.03000","title":"Closing the Visibility Gap: A Monitoring Framework for Verifiable Open RAN Operations","abstract":"Open Radio Access Network (Open RAN) is reshaping mobile network architecture by promoting openness, disaggregation, and cross-vendor interoperability. However, this architectural flexibility introduces new security challenges, especially in deployments where multiple mobile network operators (MNOs) jointly operate shared components. Existing Zero Trust Architectures (ZTA) in O-RAN, as defined by governmental and industry standards, implicitly assume that authenticated components will comply with operational policies. However, this assumption creates a critical blind spot: misconfigured or compromised components can silently violate policies, misuse resources, or corrupt downstream processes (e.g., ML-based RIC xApps). To address this critical gap, we propose a monitoring framework for low-trust O-RAN environments that proactively verifies configuration state and control behavior against tenant-defined policies. Our system provides scalable, verifiable oversight to enhance transparency and trust in O-RAN operations. We implement and evaluate the framework using standardized O-RAN configurations, with total processing latency of approximately 200 ms, demonstrating its efficiency and practicality for timely policy enforcement and compliance auditing in multi-MNO deployments.","short_abstract":"Open Radio Access Network (Open RAN) is reshaping mobile network architecture by promoting openness, disaggregation, and cross-vendor interoperability. However, this architectural flexibility introduces new security challenges, especially in deployments where multiple mobile network operators (MNOs) jointly operate sha...","url_abs":"https://arxiv.org/abs/2509.03000","url_pdf":"https://arxiv.org/pdf/2509.03000v1","authors":"[\"Hexuan Yu\",\"Md Mohaimin Al Barat\",\"Yang Xiao\",\"Y. Thomas Hou\",\"Wenjing Lou\"]","published":"2025-09-03T04:17:57Z","proceeding":"cs.NI","tasks":"[\"cs.NI\",\"cs.CR\"]","methods":"[]","has_code":false}