SOC 2 Compliance
EXT-03High

Restrict Guest Access to Allowlisted Domains for SOC 2 Compliance

Learn how EXT-03 helps you meet SOC 2 requirements for Microsoft 365 and Entra ID security.

SOC 2 compliance requires implementing specific controls around restrict guest access to allowlisted domains. This page explains how TrueConfig's EXT-03 control helps you meet SOC 2 requirements in your Microsoft 365 environment.

How EXT-03 Addresses SOC 2 Requirements

SOC 2 requires organizations to implement controls around restrict guest access to allowlisted domains. The EXT-03 control provides:

  • Guest invitations are restricted to an allowlist of trusted domains
  • Cross-tenant access policies block all other external tenants
  • External sharing in SharePoint/OneDrive is restricted to allowed domains

These measures directly support SOC 2 compliance by ensuring proper external security in your Microsoft 365 environment.

Implementation for Compliance

To satisfy SOC 2 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 SOC 2 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 SOC 2

At Level 3, external collaboration is tightly controlled. Only pre-approved partner organizations can access your tenant. This prevents social engineering and limits data exposure to vetted third parties.

Implementing EXT-03 is an important step toward SOC 2 compliance. Combined with TrueConfig's continuous monitoring, you can demonstrate ongoing adherence to SOC 2 requirements.

Ready to achieve SOC 2 compliance?

TrueConfig continuously monitors your Microsoft 365 tenant for compliance with SOC 2 requirements, including this control.