Tools / Zero Trust Architecture (ZTA) Interview questions
What is continuous authentication in Zero Trust?
Continuous authentication is the ongoing re-evaluation of trust signals for the full duration of a session, rather than a single check at login. Signals such as behavior patterns, location changes, network reputation, and device health drift are monitored while the session is active.
If any of these signals shift enough to raise risk, the system can respond mid-session: prompting for step-up authentication, restricting the actions allowed, or terminating the session outright.
This matters because a legitimate login does not guarantee the session stays legitimate; credentials can be hijacked or a device can become compromised after authentication succeeds.
Continuous authentication differs from one-time login checks because it:
If risk signals rise mid-session, a Zero Trust system can:
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