TO
I'm a Chief Security Officer who spends most of my time inside the Microsoft security stack — Sentinel, Defender XDR, Entra ID, Purview — and I write here to share what actually works in production environments that don't have a 50-person SOC.
What I focus on
- Zero Trust architecture for small and mid-market organizations
- Microsoft Sentinel deployment, tuning and cost optimization
- Defender XDR onboarding and incident response runbooks
- Entra ID conditional access and identity hardening
- NIS2, ISO 27001 and pragmatic compliance mappings
Why DefenderSensei
Most security content is written for the Fortune 500 — by vendors who want to sell you something. I'm not selling anything here. The mission is simple: make enterprise-grade cybersecurity practices accessible to organizations that don't have enterprise budgets.
If a 30-person engineering team can run the same Zero Trust posture as a Fortune 500 — and they can, with what's already in their Microsoft 365 license — then sharing how is worth doing.