ISO 27001 Compliance
CA-03High

Block or Require MFA for Risky Sign-Ins for ISO 27001 Compliance

Learn how CA-03 helps you meet ISO 27001 requirements for Microsoft 365 and Entra ID security.

Organizations pursuing ISO 27001 compliance need to address block or require mfa for risky sign-ins as part of their security program. The CA-03 control maps directly to ISO 27001 requirements, helping demonstrate compliance while strengthening your security posture.

How CA-03 Addresses ISO 27001 Requirements

ISO 27001 requires organizations to implement controls around block or require mfa for risky sign-ins. The CA-03 control provides:

  • An Identity Protection sign-in risk policy is enabled
  • High-risk sign-ins are blocked
  • Medium-risk sign-ins require MFA

These measures directly support ISO 27001 compliance by ensuring proper conditional_access security in your Microsoft 365 environment.

Implementation for Compliance

To satisfy ISO 27001 requirements with this control:

  • **Enable the control** - Use TrueConfig's one-click remediation
  • **Document your implementation** - Record how the control was configured
  • **Maintain evidence** - TrueConfig automatically logs compliance status
  • **Monitor continuously** - Track any deviations from the expected state

Evidence Collection

For ISO 27001 audits, you'll need to demonstrate:

  • Current configuration state
  • Historical compliance data
  • Remediation actions taken
  • Continuous monitoring in place

TrueConfig provides all of this evidence through its audit trail and reporting features.

Why This Control Matters for ISO 27001

Microsoft analyzes each sign-in for anomalies (impossible travel, anonymous IP, malware-linked IPs). Risk-based policies automatically escalate protection when threats are detected, without user friction during normal access.

Implementing CA-03 is an important step toward ISO 27001 compliance. Combined with TrueConfig's continuous monitoring, you can demonstrate ongoing adherence to ISO 27001 requirements.

Ready to achieve ISO 27001 compliance?

TrueConfig continuously monitors your Microsoft 365 tenant for compliance with ISO 27001 requirements, including this control.