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Automate Response to Alerts

Implementation Effort: Medium
Automating alert responses requires integration with Microsoft Power Automate or SIEM/SOAR tools, and coordination between security operations and platform teams to define workflows.

User Impact: Low
All actions are handled by security teams; no direct user involvement is required.

Overview​

Microsoft Defender for APIs supports automation of alert responses by integrating with Microsoft Power Automate, allowing security teams to create custom workflows that trigger when specific alerts are generated. This enables faster, consistent, and scalable incident response actions without manual intervention.

Key Capabilities​

  • Trigger-based Automation: Alerts from Defender for APIs (via Defender for Cloud Apps) can automatically trigger Power Automate flows 1.
  • Custom Playbooks: Use Power Automate to define actions such as:
    • Creating tickets in ServiceNow or Jira.
    • Sending approval emails or Slack/Teams notifications.
    • Updating alert status or tagging incidents.
  • Policy Integration: Associate Power Automate playbooks with specific alert policies in Defender for Cloud Apps to ensure targeted automation 1.

How to Set It Up​

  1. Create an API token in Defender for Cloud Apps.
  2. In Power Automate, create a new Automated cloud flow.
  3. Use the Defender for Cloud Apps connector and select "When an alert is generated" as the trigger 1.
  4. Add steps to define your response logic (e.g., notify, escalate, isolate).
  5. In Defender for Cloud Apps, go to Policy Management, edit the relevant policy, and select Send Alerts to Power Automate, then choose your playbook 1.

Best Practices​

  • Test playbooks in a staging environment before production use.
  • Regularly review and update automation logic to align with evolving threats.
  • Use conditional logic to avoid over-responding to low-severity alerts.

Without automation, response times may lag, increasing the risk of damage from API-based attacks. This capability supports the Zero Trust principle of "Assume breach" by enabling rapid, consistent, and scalable responses to detected threats.

Reference​