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The 2026 Buyer’s Guide to SIEM Deployment Models

A practical, technical comparison of In-House SIEM vs Hybrid Managed SIEM vs Fully Managed SIEM—proposed by our CISO because SIEM is consistently one of the most complex decisions our customers face.

Download the Guide

The 2026 Buyer’s Guide to SIEM Deployment Models

A practical, technical comparison of In-House SIEM vs Hybrid Managed SIEM vs Fully Managed SIEM—proposed by our CISO because SIEM is consistently one of the most complex decisions our customers face.

Download the Guide

Clear responsibilities, cost ranges, and what breaks in production

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Built from real-world SIEM operations: tuning, ingestion, detection engineering, 24/7 monitoring

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Covers outcomes that matter: signal-to-noise, MTTD/MTTR realism, compliance evidence, and cost predictability

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Vendor-neutral framework for evaluating tradeoffs

Make the SIEM model decision with eyes open

Operational Reality (Who runs what?)

Understand where the work actually lives: ingestion, parsing, correlation, tuning, triage, reporting.

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Detection Quality vs Internal Burden

Why “having SIEM” is not the same as reliable detection—and why tuning and enrichment determine outcomes.

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TCO and Predictability

Compare cost drivers: storage/retention, staffing (SOC + engineering), content maintenance, and vendor service scope.

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Includes realistic annual TCO ranges

For all models, in-house, hybrid and fully managed, and what those numbers typically include.
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Built for every stakeholder in the SIEM decision

cisos

Choose the model that optimizes detection maturity, risk reduction, and audit readiness—without hidden staffing traps.

 

soc analysts

See how each model impacts alert quality, enrichment depth, triage workload, and false positives.

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Understand infrastructure responsibilities: collectors, upgrades, scaling, retention, and data hygiene.

network admins

Know what “good” looks like for network visibility: firewall/proxy/DNS coverage, parsing quality, and correlation.

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Plan resourcing and governance: who owns IR decisions, escalation SLAs, and operational continuity.

Why our CISO asked us to publish this

SIEM projects fail less from tooling and more from operating model: split ownership, unstable log pipelines, weak enrichment, and under-resourced tuning. This guide is designed to make the tradeoffs explicit—before you commit budget and headcount.

 

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What you must staff internally (and what you can realistically outsource) 

Where hybrid models create friction and delays 

When fully managed SIEM materially improves signal-to-noise and time-to-value

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Download the 2026 SIEM Deployment Models Buyer’s Guide

Inside: responsibilities by model, detection vs operational burden tradeoffs, realistic TCO ranges, and evaluation criteria for CISOs, SOC teams, and IT operations.