Lumen Technologies Rebuilds Exposure Management at Scale: From 17,000 to 1.1 Million Assets

Lumen Technologies, a telecommunications company with nearly a century of history, used the Axonius asset intelligence platform to reconcile data from over 40 disconnected systems, uncovering 60 times more devices than previously known. The project, led by Geoff Krahn, Director of Product and Platform Security, expanded the known asset inventory from approximately 17,000 to 1.1 million devices. This transformation enabled rapid zero-day response, application-level posture visibility, and a shift from ‘scan and spam’ vulnerability management to risk-based exposure management. The improved visibility drove a 10x increase in security investment, a 40% risk reduction through cloud migration, and board-level reporting on asset coverage and compliance. The article highlights the critical role of trusted asset data in effective exposure management and references the 2026 Axonius Actionability Report, which found that only 45% of organizations consolidate asset and exposure data into a single view.