Just-in-time (JIT) access

What is JIT access?

Just-in-time (JIT) access is an access control mechanism where users or non-human identities (such as service accounts, agents, or bots) are granted permissions to systems, resources, or data only when needed and only for the duration required to complete a task.

How does JIT access work?

The process starts with a user or a non-human identity submitting a request specifying the target system, purpose, and required duration. The request is then reviewed, either automatically against predefined policies or manually by an approver. All access requests and sessions are logged, creating a record of who accessed what and when. The steps users and systems go through for Just-in-time access.

Some systems also support condition-based access. In this case, granted access is triggered by events such as an on-call alert or an incident ticket, without requiring a manual request.

Types of JIT access

JIT access can be granted and revoked in one of the three following ways:

Temporary elevation: A user's existing account is temporarily granted elevated privileges, such as admin rights, for a defined period.
Ephemeral accounts: A temporary account is created specifically for a task, then deleted when the session ends.
Broker-based access: Access is routed through an intermediary system that authenticates the user, enforces policies, and connects them to the target resource without exposing credentials directly.

Why is JIT access important?

JIT access addresses one of the weaknesses of traditional access models, where elevated permissions are typically permanent. By ensuring access exists only where and when needed, it can reduce the window of exposure.

This can also limit the impact of a breach. With JIT access in place, an attacker can only operate within the active time window and scope.

Risks and privacy concerns

JIT access reduces risk, but its effectiveness depends on how well it is configured and enforced.

Approval flows: Slow or inconsistent reviews can result in unnecessary or poorly scoped access being granted.
Policy misconfiguration: Overly permissive settings can lead to sessions with broader permissions or longer durations than needed.
Logging gaps: Incomplete or inconsistent logging makes it difficult to trace sessions or detect misuse.
Operational delays: In time-sensitive situations, approval wait times can disrupt urgent work.
Identity spoofing: If identity verification is weak, attackers can impersonate users to gain privileged access.
User privacy: Detailed session logs collect granular activity data, which may conflict with employee privacy regulations in some jurisdictions.

FAQ

What is the difference between just-in-time access and least privilege?

Least privilege defines the minimum level of access a user should have. Just-in-time (JIT) access is an implementation approach that defines when and for how long a user is given privileged access.

Is just-in-time access only for admin accounts?

No. While it’s most commonly applied to privileged accounts, just-in-time (JIT) access can be used for any resource where standing access is considered a security risk.

Does JIT access improve cybersecurity?

Yes. By eliminating persistent permissions, just-in-time (JIT) access reduces the window of exposure and limits the potential impact of compromised credentials.

How long should just-in-time (JIT) access last?

There’s no fixed standard. Access duration should match the time required to complete the task, typically ranging from minutes to a few hours.

What tools commonly support just-in-time access?

Just-in-time (JIT) access is typically supported by privileged access management (PAM) platforms, as well as cloud identity solutions.