Lumen Technologies announced the launch of Lumen Defender Advanced Managed Detection and Response (AMDR) in partnership with Microsoft Sentinel. The fully managed, cloud‑native solution combines Lumen’s global network intelligence with Microsoft’s leading security platform to deliver real‑time threat detection and automated response for enterprises that rely on AI workloads.
The integration leverages Microsoft Sentinel’s SIEM and SOAR capabilities, allowing Lumen to ingest security telemetry from its network and feed it into Sentinel’s AI‑driven analytics. Lumen’s Black Lotus Labs threat intelligence feeds are embedded into the platform, giving customers visibility into the most advanced attack vectors across the global network.
The launch aligns with Lumen’s broader strategy to become a core infrastructure provider for the AI economy. By offering low‑latency, high‑throughput connectivity and built‑in security, Lumen is positioning itself to serve AI‑driven enterprises that need secure, high‑performance networks for data‑intensive workloads.
Lumen’s recent financial performance reflects the company’s transformation. In Q4 2024, the company posted a net income of $85 million, a turnaround from a $1.995 billion loss in Q4 2023. In Q3 2025, revenue was $3.087 billion, down 4.2% year‑over‑year, while the company reported a net loss of $621 million. The new security offering is part of a broader effort to strengthen the balance sheet and drive growth in high‑margin digital services.
Martin Nystrom, Vice President of Black Lotus Labs, said, “As digital innovation accelerates across cloud, edge, and AI, security must evolve from being bolted on to being built in. We’re shaping a future where the network itself becomes the first line of defense.” Vasu Jakkal, Microsoft’s CVP for Security, added, “This collaboration delivers network‑driven threat visibility and 24/7 managed security operations—empowering organizations to detect, respond to, and mitigate advanced cyber threats with speed and confidence.”
By combining Lumen’s network intelligence with Microsoft’s security platform, the new AMDR offering gives customers a single, integrated solution that reduces complexity and accelerates response times. The launch is a key milestone in Lumen’s shift toward high‑growth digital services and positions the company to capture a growing market for AI‑centric security solutions.
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