✳ Security Fit Map / SIEM / Protocol v1.0

Investigations for a small security team

Three analysts, cloud and identity logs, a named incident owner, and a requirement to export evidence.

UNASSESSED · RESEARCH PROTOCOL · 2026-09-19

This edition publishes the evaluation question and work still required. It contains no scored vendor points.

What must be true

  • Required identity and cloud sources are available.
  • An analyst can reconstruct and export a timeline.
  • Access to evidence can be limited to authorized responders.

Candidate scope

Two publicly documented offerings form a small pilot. Inclusion is for methodology development, not a claim that these are the only or best choices. Exact tiers and test configurations must be frozen before scoring.

OfferingScopeStatus
Microsoft SentinelThis profile covers Sentinel analytics and investigation. Data tiers, automation and adjacent Microsoft security products have their own configuration and commercial boundaries; a Microsoft environment alone does not establish that every source or feature is included.Unassessed
Capability: null
Operating: null
Elastic SecurityThis page covers the SIEM use case, with Elastic Defend covered separately as an endpoint offering. Cloud and self-managed deployments divide infrastructure responsibilities differently, and advanced security capabilities vary by subscription.Unassessed
Capability: null
Operating: null

Evidence still needed

  • A frozen workload and exact purchased tiers
  • Independent repeatable investigation tests
  • Documented operating effort and cost estimates

How the evaluation will work

  1. Fix the workload, organizational assumptions, product editions, and mandatory requirements.
  2. Publish criterion-specific 0–5 anchors before collecting results.
  3. Collect reproducible observations, source dates, and operating measurements. Preserve contradictory evidence.
  4. Use the rubric below without filling unknowns with estimates.
  5. Have a second reviewer reproduce results. Publish only after both axes reach 80% coverage and critical requirements have explicit results.
AxisCriterionWeight
capabilityRequired functions40%
capabilityRepresentative effectiveness30%
capabilityEvidence and explainability15%
capabilityRequired data exchange15%
operatingStaffing and administration30%
operatingEnvironment and deployment25%
operatingIntegration maintenance20%
operatingPortability and exit15%
operatingCost predictability10%

Threshold: 70/100 on each axis. A missing-evidence interval that spans 70 prevents a definitive quadrant label. A critical failure blocks a shortlist recommendation.

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