Henry Montagu is a Principal Security Engineer at Cloudflare and a core contributor to the company’s detection and response programs. He focuses on building scalable detection logic and improving incident response workflows to strengthen Cloudflare’s global security operations. Previously, Henry worked as a security engineer at several of the world’s top technology companies, supporting cloud security, response tooling, and telemetry integration. He brings a systems-level perspective informed by a PhD in quantum transport physics, where his research focused on quantum coherence and computational modeling of mesoscopic systems. His background in applied research, teaching, and numerical simulation shapes his methodical approach to solving complex security problems.