SIEM alert triage template

Components in this architecture diagram

• SIEM alert fires
• Alert lands in SOC queue with severity
• Tier 1 analyst acknowledges within SLA
• Enrich: asset owner, user, threat intel, geo-IP
• Known false positive pattern?
• Close as false positive
• Tune detection rule or add exclusion
• Review related events & timeline
• Malicious or suspicious activity confirmed?
• Close as benign with notes
• Scope: affected hosts, accounts & data
• Severity high or critical?
• Contain via SOAR playbook
• Escalate to Tier 2 & incident commander
• Open security incident ticket
• Isolate host with EDR & disable account
• Document findings in case
• Lessons learned & detection update
• Alert closed

How to use this architecture diagram template

1. Click Open in the editor. The architecture diagram opens on a new page in FlowDiagram — nothing is uploaded and there is no sign-up.
2. Rename, add or delete shapes and drag them where you want; connectors stay attached as things move.
3. Drop in vendor logos from the library — 1,160 of them, including every AWS, Azure and Google Cloud service icon — or restyle it with the colour and theme controls.
4. Prefer text? Edit the Mermaid source below and paste it in through ☰ → Import diagram (see the Mermaid editor); it imports as an editable diagram.
5. Export to PNG, SVG or PDF, or press Ctrl+L for a link that carries the whole diagram.

Mermaid source

The whole template is the text below. Paste it into FlowDiagram, keep it in Git next to the code it describes, or hand it to an AI assistant to extend.

flowchart TD
  A((SIEM alert fires)) --> B[Alert lands in SOC queue with severity]
  B --> C[Tier 1 analyst acknowledges within SLA]
  C --> D[Enrich: asset owner, user, threat intel, geo-IP]
  D --> E{Known false positive pattern?}
  E -->|Yes| F[Close as false positive]
  F --> G[Tune detection rule or add exclusion]
  E -->|No| H[Review related events & timeline]
  H --> I{Malicious or suspicious activity confirmed?}
  I -->|No| J[Close as benign with notes]
  I -->|Yes| K[Scope: affected hosts, accounts & data]
  K --> L{Severity high or critical?}
  L -->|No| M[Contain via SOAR playbook]
  L -->|Yes| N[Escalate to Tier 2 & incident commander]
  N --> O[Open security incident ticket]
  O --> P[Isolate host with EDR & disable account]
  M --> Q[Document findings in case]
  P --> Q
  Q --> R[Lessons learned & detection update]
  G --> S((Alert closed))
  J --> S
  R --> S

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