--- title: "Principle of Least Privilege — Identity Glossary | IDSync" description: "The principle of least privilege says every user, service, and process should hold only the minimum access required to perform its job — and nothing more…" lang: en json-ld: | [ { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://idsync.com/" }, { "@type": "ListItem", "position": 2, "name": "Glossary", "item": "https://idsync.com/glossary" }, { "@type": "ListItem", "position": 3, "name": "Principle of Least Privilege", "item": "https://idsync.com/glossary/least-privilege" } ] }, { "@context": "https://schema.org", "@type": "DefinedTerm", "@id": "https://idsync.com/glossary/least-privilege", "name": "Principle of Least Privilege", "alternateName": [ "PoLP", "least privilege", "PoLP" ], "description": "The principle of least privilege says every user, service, and process should hold only the minimum access required to perform its job — and nothing more — at any given moment.", "url": "https://idsync.com/glossary/least-privilege", "inDefinedTermSet": "https://idsync.com/glossary" }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How do I start?", "acceptedAnswer": { "@type": "Answer", "text": "Baseline existing access, identify the worst offenders (long-unused admin roles, broad cloud roles), and pilot JIT access for those. Then expand." } } ] } ] --- [![IDSync — identity software buyer platform](/assets/idsync-logo-BKS89EW4.png)](/) [Directory](/directory) [Compare](/compare) [Resources](/resources) [Browse tools](/directory)[Run Stack Finder](/stack-finder) 1. [Home](/) 2. [Glossary](/glossary) 3. Principle of Least Privilege Identity Governance # Principle of Least Privilege (PoLP) The principle of least privilege says every user, service, and process should hold only the minimum access required to perform its job — and nothing more — at any given moment. Last reviewed 3 months ago Key points - Foundational security principle (Saltzer & Schroeder, 1975) - Applies to humans, service accounts, and machine identities - Enforced through RBAC/ABAC, JIT access, and CIEM - Hardest part is sustaining it as orgs change, not initial design - Required by virtually every compliance framework ## What it is Least privilege (PoLP) is the discipline of granting the smallest set of permissions necessary, for the shortest necessary time. It applies equally to a human developer, a CI/CD pipeline, and an AI agent calling tools. ## How it works in practice - **At design**: Decompose broad roles (`Admin`) into scoped ones (`Billing Admin`, `User Admin`). - **At runtime**: Use JIT access for elevation, short-lived tokens for services, and scoped OAuth tokens for third-party integrations. - **Continuously**: Run CIEM and IGA tools to detect unused entitlements and excess privilege. ## When buyers care - Every compliance framework (SOX, SOC 2, ISO 27001, PCI, HIPAA, FedRAMP) requires it - Cloud breaches almost always involve over-permissive IAM - AI agents and machine identities are exploding the surface area where least privilege matters ## Common misconceptions - **Least privilege is not a one-time project.** Org changes constantly violate it; sustained tooling is required. - **Least privilege is not the same as zero trust.** Zero Trust assumes breach and verifies continuously; least privilege limits what an authenticated identity can do. ## FAQ ### How do I start? Baseline existing access, identify the worst offenders (long-unused admin roles, broad cloud roles), and pilot JIT access for those. Then expand. IDSync provides educational buyer guidance based on publicly available information, editorial review, and user-submitted data. Vendor information should be verified before purchase. [Who we are, our methodology & disclosure policy](/about). ### One identity concept, explained per issue Get vendor-neutral identity explainers and market updates in your inbox. Work email\* Name Company Role (optional) Interests (optional) Pick what you want more of. IAMCIAMSSO/MFAIGA/PAMSCIM/provisioningAI agent identityVendor updatesSecurity incidents Subscribe Twice-monthly identity digest. Curated, vendor-neutral. Unsubscribe any time. ### Vendor categories [iga](/directory/category/iga) ### Vendors to evaluate [sailpoint](/directory/sailpoint)[saviynt](/directory/saviynt)[lumos](/directory/lumos) ### Not sure which tool you need? Run the IAM Stack Finder for a vendor-neutral shortlist tailored to your stack. [Run the Stack Finder](/stack-finder) ### Explore tools for this topic Browse vetted vendors in the iga category. [Explore tools](/directory/category/iga) [![IDSync home](/assets/idsync-logo-BKS89EW4.png)](/) The buyer-focused platform for identity, access, and authentication software. #### Platform - [Home](/) - [IAM Stack Finder](/stack-finder) - [Directory](/directory) - [Resources](/resources) - [State of AI Agent Identity 2026](/reports/state-of-ai-agent-identity-2026) - [Buyer Guides](/guides) - [Glossary](/glossary) - [Newsletter](/newsletter) - [Newsletter Archive](/newsletter/archive) #### Best of guides - [All comparisons](/compare) - [All vendor alternatives](/alternatives) - [Best SSO tools](/compare/best-sso-tools) - [Best MFA tools](/compare/best-mfa-tools) - [Best PAM tools](/compare/best-pam-tools) - [Best IGA tools](/compare/best-iga-tools) - [Best CIAM tools](/compare/best-ciam-tools) - [Best passwordless auth](/compare/best-passwordless-authentication-tools) - [Best identity security](/compare/best-identity-security-tools) - [Best machine identity](/compare/best-machine-identity-tools) - [Best SaaS access governance](/compare/best-saas-access-governance-tools) - [Best developer auth](/compare/best-developer-authentication-tools) - [Best for startups](/compare/best-iam-tools-for-startups) - [Best for enterprises](/compare/best-iam-tools-for-enterprises) - [Best SCIM tools](/compare/best-scim-provisioning-tools) - [Best for AI agents](/compare/best-ai-agent-identity-tools) - [Best NHI tools](/compare/best-nhi-management-tools) - [Okta pricing explained](/guides/okta-pricing) - [Auth0 pricing explained](/guides/auth0-pricing) - [Okta alternatives](/alternatives/okta) - [Auth0 alternatives](/alternatives/auth0) #### For Vendors - [Sponsor](/sponsor) - [Badges](/badges) - [Submit Product](/submit-product) - [Claim Profile](/claim-profile) - [Partner](/partner) #### Company - [About & Methodology](/about) - [Contact](/contact) - [Privacy](/privacy) Vendor names, logos, and trademarks are the property of their respective owners. IDSync is an independent buyer resource and does not imply endorsement unless explicitly stated. Logos are displayed for identification purposes only. IDSync (idsync.com) is operated by TetraCore, Bowling Green, Ohio. It is not affiliated with the IDSync® Active Directory synchronizer by Identity Syncronizer — [learn more](/about#idsync-disambiguation). © 2026 IDSync. All rights reserved. Editorial independence. Sponsored placements are clearly disclosed.