Beyond the buzzword: 3 practical steps to achieve least privilege today

The principle of Least Privilege is a cornerstone of modern cybersecurity. It’s a simple, powerful concept: every identity, human or machine, should only have the bare minimum permissions necessary to perform its function. We all know why it’s important—it’s the foundation of a strong security posture, a key tenet of Zero Trust, and one of the most effective ways to limit the blast radius of a potential breach. Yet, for many organizations, the gap between theory and practice remains a chasm.

Many security teams are stuck with manual, time-consuming, and ineffective processes that fail to enforce least privilege at scale. The sheer volume and variety of identities, applications, and data sources, coupled with the dynamic nature of cloud environments, makes traditional access management feel like an unwinnable battle. The good news? You don't need to boil the ocean.

Achieving a state of least privilege isn’t an all-or-nothing endeavor. It’s a journey, and one that can be broken down into manageable, high-impact steps. Here are three practical things you can do now to start chipping away at the mountain of standing privilege and significantly reduce your organization's risk profile.

1. Expand Your visibility: See the whole picture, not just part of it

For years, identity governance has been overwhelmingly focused on human users. We’ve built robust processes for onboarding, offboarding, and certifying employee access. But what about the explosion of non-human identities? Service accounts, machine identities, APIs, and now, a growing army of AI agents are all accessing sensitive data and systems, often with broad, static, and unmonitored permissions.

These non-human identities now outnumber human employees in many organizations, and they represent a massive, often unmanaged, attack surface. Their credentials are a prime target for attackers, and a compromised service account with excessive privileges can be a ticket into your most critical systems.

Your first practical step is to bring these non-human and AI agents under the umbrella of your identity governance program. This means:

• Discovery: You can't govern what you can't see. Start by discovering and inventorying all non-human identities across your hybrid and multi-cloud environments.
• Ownership and context: Assign ownership to these identities and understand their purpose. What service does this account run? What data does it need to access? Who is responsible for it?
• Integration: Integrate them into your existing identity and access management (IAM) and governance (IGA) solutions to apply consistent policies, conduct access reviews, and monitor their activity.

By expanding your visibility, you’re no longer flying blind. You’re finally looking at your entire identity landscape, which is the essential first step to securing it.

2. Leverage AI for critical context: Make smarter, data-driven decisions

Once you have visibility, the next challenge is making sense of it all. How do you determine what "least privilege" actually looks like for thousands of identities and millions of entitlements? This is where artificial intelligence moves from a buzzword to a practical, indispensable tool.

Manual access reviews are notoriously ineffective. Managers, faced with a spreadsheet of cryptic permissions, often resort to "rubber-stamping" approvals, allowing excessive privileges to accumulate. AI and machine learning can cut through this complexity by providing the critical context needed to make intelligent access decisions.

Your second step is to leverage AI to enrich your access decision-making process. Instead of just asking, "Should this user have this access?" you can now ask much more insightful questions:

• What is this access for? AI can analyze usage data to determine which permissions are actually being used and which are unnecessary.
• Is this access risky? AI can identify high-risk permissions, such as the ability to delete data or change security settings and flag them for closer scrutiny.
• Is this access anomalous? By establishing a baseline of normal behavior, AI can detect when an identity is using permissions in a way that is out of character, potentially indicating a compromise.
• What is the right level of access? AI can provide prescriptive recommendations for right-sizing permissions, helping you confidently revoke unnecessary access without disrupting business operations.

By embedding AI-driven context into your governance model, you empower access owners to make smarter, faster, and more secure decisions.

3. Implement Just-in-Time (JIT) access: Grant privilege on demand

Even with perfect visibility and AI-powered decision-making, the reality is that many identities, especially IT admins and developers, will still require powerful privileges at certain times. The problem is that, historically, this access has been granted persistently. This "standing privilege" is one of the biggest security risks organizations face today.

Just-in-time (JIT) access offers a practical solution. Instead of granting elevated access 24/7, JIT allows users to request and receive temporary, time-bound access to specific systems or roles, right when they need it. When the task is complete, the access is automatically revoked.

Your third step is to implement a basic form of JIT access to tackle the problem of standing privilege head-on. This doesn't require a complete overhaul of your infrastructure. You can start small:

• Identify high-risk roles: Begin with your most privileged accounts, such as domain administrators or super-users.
• Automate requests and approvals: Implement a simple, automated workflow for requesting, approving, and provisioning temporary elevated access.
• Log and monitor: Ensure that all JIT sessions are logged and monitored, providing a clear audit trail of who accessed what, when, and why.

By shifting from a "just-in-case" to a "just-in-time" model, you dramatically shrink the window of opportunity for an attacker to exploit privileged credentials.

The journey to least privilege starts today

The principle of least privilege may be a foundational concept, but achieving it has often felt like a distant, unattainable goal. By breaking the journey down into these three practical, manageable steps, you can start making meaningful progress today. Expand your visibility to include all identities, leverage AI for context-rich decision-making, and implement JIT to eliminate standing privilege. This pragmatic approach will allow you to move beyond the buzzword and build a more secure, resilient organization.