Defender & Sentinel SecOps Review (Representative)
Watheq Zboun
Representative engagement. Illustrative and anonymized.
Microsoft Defender & Sentinel SecOps Review
The brief. A 400-seat company with Microsoft E5 had a SIEM but no confidence anyone was watching it. They wanted one honest answer: are we actually covered?
The challenge. The Defender stack shipped mostly on default settings, Sentinel was over-ingesting in the expensive analytics tier, and it still ran in the Azure portal, which Microsoft retires on 31 March 2027.
Detection and response coverage across endpoint, email, identity, and SaaS.
What I did.
Board-ready initiative scores, each mapped to a remediation step.
Reviewed detection and response coverage across endpoint (Defender for Endpoint), email (Defender for Office 365), identity (Defender for Identity), and SaaS (Defender for Cloud Apps).
Scored their BEC, CIS Foundations, and Ransomware Protection initiatives, and mapped each finding to a remediation step.
Ran a Sentinel cost-and-portal-move check: data-lake tiering to cut ingestion spend, and a transition plan to the unified Defender portal.
The outcome (illustrative). A board-ready posture report with initiative scores, a Sentinel cost model that lowered projected ingestion spend, and a costed 90-day roadmap with a clear build, buy, or co-manage recommendation. Read-only, no changes made during the review.
Lower projected ingestion spend, and a plan to beat the portal-retirement deadline.
Tools: Microsoft Sentinel, Microsoft Defender XDR, Microsoft Defender for Endpoint, SIEM.
Figures illustrative, representative of a typical engagement.
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Posted Jun 6, 2026
Representative engagement: one scored picture of detection and response across endpoint, email, identity, and SaaS, with a costed roadmap.
