Three Critical Steps to Strengthen Microsoft Intune Administrative Security

Microsoft Intune provides powerful endpoint management capabilities, but with that power comes significant security responsibility. The Intune team has outlined three critical best practices to strengthen administrative controls and protect organizations from potential security breaches.

Start with Least-Privilege Role Design

The foundation of secure Intune administration begins with proper role-based access control (RBAC). Rather than granting broad administrative permissions, organizations should design roles around specific job functions.

Intune's RBAC system allows administrators to tailor permissions and scopes so teams can perform daily operations with only the minimum required access. This approach limits both the actions an admin can take and the users/devices those actions can affect.

Key implementation steps:

• Inventory current role assignments and remove broad permissions that don't map to specific job functions
• Leverage built-in role definitions for common personas (Help Desk Operator, Application Manager, Endpoint Security Manager)
• Create custom roles for granular control when needed
• Implement scoped administration using scope tags for business units, regions, or platform teams
• Adopt time-bound privilege elevation through Microsoft Entra Privileged Identity Management (PIM)

Embrace Phishing-Resistant Authentication

Protecting privileged access requires more than just passwords. Microsoft Entra ID provides comprehensive capabilities including Conditional Access, phishing-resistant multifactor authentication, and privileged access controls.

The goal is to make privileged access both difficult to obtain and difficult to reuse. Every privileged Intune action should require strong, policy-verified sign-in.

Security measures to implement:

• Create Conditional Access policies dedicated to privileged roles and admin portals
• Require phishing-resistant authentication methods only for admin accounts
• Use Microsoft Entra PIM for time-bound role assignments with approval steps
• Establish privileged admin workstations with higher security baselines
• Operationalize token theft response plans using Microsoft Defender XDR

Multi-Admin Approval for Sensitive Changes

Multi Admin Approval introduces a critical governance control where selected Intune changes require a second authorized admin to review and approve before deployment. This feature is enforced for both Intune admin center actions and API-based operations.

Implementation guidance:

• Start with high-impact changes like Intune RBAC role management and device wipe
• Add approval requirements for changes affecting authentication, compliance, and security baselines
• Define approver roles, coverage, and service level agreements
• Document emergency break-glass procedures with explicit post-change review

Combined Benefits

When implemented together, these practices shift organizations from relying on "trusted administrators" to building protected administration by design. This approach provides:

• Contained impact through least-privilege principles
• Verified trust through Microsoft Entra-based controls
• Governed changes through multi-admin approval
• Improved audit readiness and operational resilience

Quick start recommendations:

1. Inventory and replace broad standing Intune role assignments
2. Enforce Conditional Access and phishing-resistant MFA for all admin scenarios
3. Place high-impact workflows behind multi-admin approval

The security of your endpoint management infrastructure depends on how well you protect administrative access. These three practices provide a comprehensive framework for building a more secure Intune environment while maintaining operational efficiency.

For organizations looking to implement these controls, Microsoft provides detailed documentation and tools to help with the transition. The investment in proper administrative security pays dividends through reduced risk and improved compliance posture.