SaaS Application Access Hardening
Overview
Implemented secure access controls for SaaS applications to ensure only authorized users on compliant devices could access company resources.
Step 1: Identify the Access Risk
During daily IT support operations, SaaS applications were accessible from unmanaged devices, creating security risks and repeated support tickets.
Step 2: Define the Security Objective
The goal was to enforce consistent authentication, reduce unauthorized access, and improve visibility into SaaS sign-ins.
Step 3: Inventory SaaS Applications
Reviewed enterprise applications in Entra ID and identified business-critical SaaS platforms requiring access hardening.
Step 4: Review Authentication Settings
Assessed MFA enforcement, user assignments, and existing Conditional Access policies for gaps.
Step 5: Organize Users & Groups
Implemented role-based Entra ID groups and removed direct user assignments.
Step 6: Configure Conditional Access
Applied MFA and device-compliance requirements using Conditional Access policies.
Step 7: Integrate Device Compliance
Linked SaaS access to Intune-managed, compliant devices.
Step 8: Test Access Scenarios
Tested sign-ins from compliant and non-compliant devices to validate behavior.
Step 9: Support Users During Rollout
Assisted users with MFA setup, device enrollment, and remediation steps.
Step 10: Documentation
Documented common errors, remediation steps, and escalation paths.
Step 11: Monitor Logs
Reviewed Entra ID sign-in logs and Conditional Access results.
Step 12: Policy Refinement
Adjusted policies based on support feedback and monitoring.
Outcome
- Improved SaaS security posture
- Reduced authentication-related tickets
- Improved consistency in access enforcement
Tools Used
- Microsoft Entra ID
- Conditional Access
- Microsoft Intune
- Microsoft Authenticator
- ServiceNow