Idle timeout is the automatic expiration of a session after a period of inactivity. It matters because unattended active sessions create avoidable exposure on shared, lost, or compromised devices.
What is Idle Timeout?
When a user or client stops interacting with a system for a defined amount of time, the session is terminated or challenged again. This reduces the chance that abandoned sessions remain usable by unauthorized parties.
What Idle Timeout Commonly Supports
Common use cases include admin consoles, financial systems, shared workstations, healthcare systems, and other environments where unattended sessions are risky.
Idle Timeout vs. Absolute Session Timeout
Idle timeout is based on inactivity. Absolute timeout ends the session after a fixed total duration regardless of activity.
Frequently Asked Questions
Why is idle timeout important?
Because it helps reduce the risk of someone using a session that a legitimate user walked away from.
Can idle timeout hurt usability?
Yes. Poorly chosen values can frustrate users, so the setting should match the sensitivity of the system.
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