Securing Microsoft Intune: Why Your Endpoint Management Platform Is Also an Attack Surface
Microsoft Intune manages endpoints at scale. It pushes apps, enforces security baselines, and configures devices across your entire organization. That reach is exactly what makes it a high-value target.
If an attacker gets admin access to Intune, they don’t just own one device. They own the policy engine that touches all of them.
Microsoft recently published updated best practices for securing Intune administrative controls. The guidance is solid. This post breaks it down and adds the operational context security teams actually need
THE THREE CONTROLS TO PAY ATTENTION TO
- Least-Privilege RBAC – Built Around Real Job Functions
Most organizations over-provision Intune access. Global Administrator and Intune Administrator roles get handed out as defaults because they’re convenient, not because the role requires that level of access.
Microsoft’s guidance is clear: design Intune RBAC roles around actual job functions. Help Desk operators don’t need device wipe permissions. Regional admins shouldn’t have visibility into devices outside their scope.
Scope tags are the mechanism for this in Intune – they constrain what an admin can see and act on. Pair that with time-bound privilege elevation through Microsoft Entra PIM, and standing admin access becomes the exception, not the default.
What to do:
∙ Inventory every account holding Intune Administrator or Global Administrator roles today
∙ Map each one to a named job function. If there’s no clear mapping, the access comes out
∙ Implement scope groups and scope tags per region, business unit, or platform team
∙ Replace standing access with PIM-based just-in-time elevation
- Phishing-Resistant MFA and Privileged Access Hygiene
Password-based access to admin portals is not acceptable in 2026. It wasn’t acceptable in 2024 either. Conditional Access policies scoped to privileged roles, combined with phishing-resistant MFA (passkeys, FIDO2, Windows Hello for Business), close the gap that legacy MFA leaves open.
Token theft is the follow-on risk that teams underestimate. An attacker who can’t steal credentials will try to steal session tokens instead.
Microsoft’s guidance recommends operationalizing a token theft response plan, with signals from Defender XDR, Entra, and Defender for Cloud Apps feeding into detection workflows.
What to do:
∙ Build dedicated Conditional Access policies for admin portals – Intune, Entra, and related endpoints
∙ Require phishing-resistant MFA only, disable weaker methods for privileged accounts
∙ Stand up Privileged Access Workstations for high-privilege Intune administration
∙ Map your token theft response before you need it, not after
- Multi-Admin Approval for High-Impact Changes
A single compromised admin account should not be able to wipe devices, deploy scripts, or modify RBAC assignments across a tenant without a second set of eyes.
Intune’s Multi Admin Approval feature enforces exactly this – a second authorized admin must review and approve selected changes before they execute. This applies to both the admin center and API-level actions, which matters because automated pipelines are increasingly the attack path.
What to do:
∙ Enable Multi Admin Approval for device wipe, script deployment, and RBAC role management at minimum
∙ Define your approver coverage: who approves, what the SLA is, and what the break-glass path looks like
∙ Document the emergency path with mandatory post-change review
Conclusion
Endpoint management platforms are part of your attack surface. They sit at the intersection of identity, device control, and policy enforcement, which makes them a natural target for threat actors who have already established initial access and are looking to move laterally or establish persistence at scale.
The controls Microsoft outlines – least-privilege, strong authentication, multi-party approval – are administrative hardening. But hardening assumes you know when those controls are being tested or bypassed.
That’s where continuous monitoring matters. HawkEye’s CSOC capability monitors for the behavioral signals that precede and follow admin plane compromise: unusual privilege escalation, anomalous admin activity patterns, sign-in risk signals, and lateral movement through management tooling. If your Intune environment is under pressure, you want to know about it before the wipe command runs.