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Security Analyst II

Microsoft • Washington, DC, US • published 2026-10-08 09:03:35.712564

Description

**Overview** The Cyber Defense Investigations team is Microsoft's deep\-dive investigative arm within Cyber Defense Operations (CDO). We investigate complex security incidents across Microsoft's cloud, identity, and supply chain environments, conduct root cause analysis, assess attacker activity, and drive actionable remediation and detection improvements. As a **Security Analyst II,** you will lead investigations, craft quick detections, perform threat hunting, collaborate with engineering and response teams, and help improve Microsoft's ability to detect and respond to advanced threats. Join Microsoft's CDI Escalations team and work at the forefront of cyber defense, investigating the most complex nation\-state, supply chain, cloud, and identity\-based attacks targeting Microsoft. Our team goes beyond traditional incident response, we combine deep investigations, threat hunting, intelligence operationalization, and cross\-organizational collaboration to identify adversaries, drive platform\-wide security improvements, and build defenses that prevent future attacks. You'll partner with leaders across MSTIC, GHOST, Detection Engineering, and service teams, leverage AI\-powered inve...

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