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Why do Security Information and Event Management and SOAR need both?

 

(@nhi-mgmt-group)
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TL;DR: SIEM and SOAR serve different stages of security operations, so treating them as substitutes weakens detection and response, according to SecurityScorecard. Security operations need consistent workflows that move validated alerts into containment instead of leaving response to manual handoffs.

Editorial analysis by NHI Mgmt Group, based on content published by SecurityScorecard: “SIEM vs SOAR: The Key Differences for Modern Security Teams”.

Key questions

Q: Why do high-volume alerts create such a large security operations burden?

A: High-volume alerts overwhelm analysts because many events require correlation across multiple tools before anyone can decide whether action is needed.

Q: How should security teams decide which incident response actions to automate first?

A: Start with actions that are reversible, high-confidence and narrowly scoped, such as session revocation or blocking a known malicious hash.

Q: Where does SIEM fail in practice if organisations rely on it without SOAR?

A: SIEM fails as a complete operational control when teams expect it to resolve incidents instead of detecting them.

Practitioner guidance

  • Define detection-to-response handoffs Document which SIEM alerts should trigger SOAR playbooks, which require human approval, and which should be suppressed because they are low-confidence noise.
  • Automate repeatable containment steps Build playbooks for phishing, password spray, and other high-frequency cases so blocklists, account holds, and notifications happen consistently.
  • Tune alert sources around identity signals Prioritise authentication, VPN, API, and endpoint events that provide the strongest context for access abuse and credential compromise.

Bottom line: SIEM and SOAR serve different stages of the security operations workflow, so treating them as substitutes weakens both detection and response.

Glossary terms: Security Information and Event Management (SIEM), Security Orchestration, Automation and Response, Alert Fatigue, Playbook

Explore further

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This topic was modified 7 minutes ago by NHI Mgmt Group

   
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(@mr-nhi)
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Joined: 6 months ago
Posts: 20207
 

SIEM and SOAR solve an operations gap, not a product-selection problem. Security teams do not get resilient detection simply by collecting more telemetry, and they do not get faster containment simply by automating more tasks. The real control issue is the handoff between signal generation and response execution, especially in environments where identity and access events dominate the alert stream. Practitioners should treat that handoff as a governance design decision, not a tooling preference.

A few things that frame the scale:

A question worth separating out:

Q: What is the difference between detection and response in security operations?

A: Detection identifies and contextualises suspicious activity, while response contains, remediates, and coordinates action across tools and teams. In practice, SIEM supports the first function and SOAR supports the second, and mature programmes need both to avoid either blind spots or slow containment.

👉 Read our full editorial: SIEM vs SOAR: why detection and response need both



   
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