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Login security that changes based on risk (new device, new location, etc.).

Definition

Adaptive authentication asks for extra checks only when something looks unusual.

In plain English Login security that changes based on risk (new device, new location, etc.).

Why this matters

Why it matters: It can stop suspicious logins, but may rely on tracking-like signals.

Example

Example: A site asks for MFA only when you sign in from a new device.