Identity-Aware Proxy (IAP) with Just-In-Time (JIT) access is an approach that transforms how we manage access to critical systems. It combines identity verification with real-time, temporary access rights to ensure that users only have the permissions they need, and only when they need them. This minimizes risk, reduces access sprawl, and strengthens the overall security posture.
In this post, we’ll explore the core aspects of Identity-Aware Proxy Just-In-Time Access, why it’s become so critical for modern software teams, and how you can see it in action in minutes.
What is Identity-Aware Proxy (IAP)?
An Identity-Aware Proxy acts as a secure gateway for users accessing applications or resources. Instead of relying on static credentials or network boundaries, an IAP verifies a user's identity and context (e.g., device, location, permissions) before granting access.
Unlike traditional perimeter-based approaches, IAP prioritizes identity and context. This shifts access management from broad network-level controls to more granular, application-specific protections.
Key Features of IAP:
- Authentication-aware: Every access request is tied to a validated identity.
- Context-sensitive: Decisions are informed by where, when, and how the request originates.
- Granular permissions: Access to specific resources is enforced at a fine-grained level.
What is Just-In-Time (JIT) Access?
Just-In-Time access is a method of granting time-limited permissions only when a specific need arises. With JIT, users don’t hold permanent access to sensitive resources. Instead, they request access when required, and that access automatically expires after a set period.
Benefits of JIT Access:
- Prevents overprivileged accounts: No long-standing, unnecessary access does wonders for reducing risk.
- Avoids manual cleanup: Permissions revert when they’re no longer needed.
- Supports compliance needs: Temporary access is aligned with least-privilege principles and audit trails.
Why IAP JIT Strengthens Security
When implemented together, IAP and JIT solve several persistent security challenges:
- Mitigates Attack Surface
By requiring both identity verification and short-lived permissions, IAP JIT greatly restricts the window of opportunity for attackers. Even if credentials are compromised, attackers face barriers from both identity-aware checks and expiring access. - Prevents Access Drift
Static roles or permissions often outlive their necessity, leading to overprivileged accounts. IAP JIT ensures that no unnecessary access persists over time. - Improves Incident Response
If a vulnerability or breach surfaces, policies enforcing JIT reduce the likelihood of damage since broad or static access doesn’t exist. - Auditable Access Controls
IAP JIT enables fine-grained logging, allowing teams to trace exactly who accessed what, when, and how, providing accountability and transparency.
How to Implement IAP JIT Across Your Environment
Rolling out Identity-Aware Proxy Just-In-Time access effectively requires careful planning and tools capable of enforcing these principles. Here’s how you can approach it: