Identity and security
PIM
Microsoft Entra Privileged Identity Management
Microsoft Entra Privileged Identity Management addresses one of the most consistently exploited weaknesses in identity security, standing privileged access, by converting administrative roles from permanently active assignments into eligible assignments that must be explicitly activated, for a defined and limited time window, before they actually grant any privilege.
Why PIM matters in a Microsoft estate
PIM matters because identity, access, endpoint, and data controls shape how Microsoft environments are protected. Readers should understand the term and then be able to move into security assessment, conformity, or remediation guidance.
How PIM shows up in practice
A compromised privileged account with no active PIM activation grants an attacker nothing beyond whatever standing access remains, drastically shrinking the number of accounts that are exploitable as Global Administrator or equivalent at any given moment compared to an environment where every administrator simply holds their role permanently. Activation can be configured to require Multifactor Authentication even for users already authenticated, a written justification describing why the elevated access is needed right now, an associated ticket number tying the activation to a specific documented change, and, for the most sensitive roles, approval from a designated second party before activation takes effect.
Every activation is logged with full detail on who activated what, when, for how long, and why, giving genuine audit-quality evidence rather than the vague 'who has admin rights' answer most organisations without PIM can actually provide. PIM applies across both major role systems in a Microsoft cloud estate, Entra ID directory roles and Azure resource roles at the subscription, resource group, or resource level, and PIM for Groups extends the identical eligible-and-time-bound model to group membership itself, so that membership of a group which happens to carry elevated application or resource permissions can be made just-in-time rather than standing, without needing a native PIM role at all.
Access reviews scoped specifically to privileged roles are a standard complement, since eligible assignments themselves need periodic recertification: an account eligible for Global Administrator that nobody has actually activated in a year is a strong candidate for removal. PIM alerts flag activity that bypasses the intended workflow entirely, such as a role being activated outside PIM through direct assignment, or unusually high volumes of activation for a given role, both of which typically indicate either a misconfiguration or an active compromise attempt.
In practice, the most common failure mode is not the absence of PIM but its incomplete adoption: an organisation licenses and configures PIM correctly for its most senior administrators while leaving departmental or delegated admin roles, Exchange Administrator, SharePoint Administrator, Helpdesk Administrator, on permanent standing assignment, which leaves a meaningful share of the tenant's actual privileged attack surface outside the control PIM was deployed to provide. PIM requires an Entra ID P2 licence or the Governance add-on, and its effectiveness depends heavily on activation friction being calibrated correctly, since requirements set too loosely fail to meaningfully reduce risk, while requirements set too strictly push administrators toward requesting standing access instead, defeating the model entirely.