What is the difference between CAE and conditional access?

Conditional access evaluates context — device, location, risk — at the moment of sign-in or token refresh. CAE extends the same idea into the lifetime of the session, allowing critical events to interrupt access between those evaluation points. They complement each other: conditional access decides, CAE keeps the decision current.

What events typically trigger a CAE re-evaluation?

Common triggers include account disablement or deletion, password change or reset, explicit session revocation by an administrator, a significant rise in user risk score, and network location changes that violate policy. The exact set depends on what the identity provider and applications support.

Does CAE replace short token lifetimes?

For applications that fully support it, CAE reduces the need for aggressively short lifetimes, since revocation no longer waits for expiry. In mixed environments, short lifetimes remain a sensible fallback for applications that cannot consume revocation signals.

Continuous Access Evaluation (CAE)

What is Continuous Access Evaluation (CAE)?

Continuous access evaluation re-checks access decisions during active sessions, so events like account disablement or a risk change take effect in near real time.

Last updated: 15 July 2026

How continuous access evaluation works

Traditional access control makes its decision once, at sign-in. The user authenticates, policy is evaluated, and a token is issued that remains valid for its lifetime — often an hour or more. If the account is disabled or the user's risk changes five minutes later, the token keeps working until it expires.

Continuous access evaluation closes that gap. The identity provider and the applications consuming its tokens agree on a signaling channel: when a critical event occurs — account disabled, password changed, session revoked, unfamiliar location, elevated risk score — the provider notifies subscribed applications, which immediately re-evaluate the session instead of trusting the token until expiry.

The result is that access reflects current conditions, not the conditions that held at sign-in. Token lifetimes can even be longer, because revocation no longer depends on expiry.

Why CAE matters

The window between a security event and token expiry is exactly when damage happens. A terminated employee's session that survives offboarding, or an attacker riding a stolen token after the victim resets their password, are both failures of point-in-time access control.

CAE is also a building block of zero trust. The principle of continuous verification — never trusting a decision just because it was made earlier — requires a mechanism for revisiting decisions mid-session, and CAE is that mechanism for token-based access. Standards work such as the OpenID Shared Signals Framework and CAEP aims to make these revocation signals interoperable across vendors.

Adopting continuous evaluation

CAE requires cooperation between the identity provider and applications: both must support the signaling protocol, and applications must be able to interrupt or re-authenticate a session gracefully rather than failing mid-operation. Start with the applications guarding the most sensitive data, and verify behavior for the critical events — disablement, password change, explicit revocation — end to end.

Where full CAE support is not available, approximate it: shorten token lifetimes for sensitive applications, and use conditional access policies that re-evaluate context at each token refresh. Identity platforms such as Monosign feed conditional access signals into these sign-in and re-evaluation decisions.

Frequently asked questions

What is the difference between CAE and conditional access?: Conditional access evaluates context — device, location, risk — at the moment of sign-in or token refresh. CAE extends the same idea into the lifetime of the session, allowing critical events to interrupt access between those evaluation points. They complement each other: conditional access decides, CAE keeps the decision current.
What events typically trigger a CAE re-evaluation?: Common triggers include account disablement or deletion, password change or reset, explicit session revocation by an administrator, a significant rise in user risk score, and network location changes that violate policy. The exact set depends on what the identity provider and applications support.
Does CAE replace short token lifetimes?: For applications that fully support it, CAE reduces the need for aggressively short lifetimes, since revocation no longer waits for expiry. In mixed environments, short lifetimes remain a sensible fallback for applications that cannot consume revocation signals.