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Authentication that adjusts required steps based on computed risk from contextual signals and behavior.

Definition

Adaptive authentication evaluates signals (device history, location, IP reputation, behavior) to decide whether to step up, block, or allow. Privacy-friendly designs minimize invasive signals and retention.

In plain English Authentication that adjusts required steps based on computed risk from contextual signals and behavior.

Why this matters

Why it matters: Reduces account takeover while minimizing friction, but can create opaque tracking if overused.

Example

Example: Use short-lived, privacy-preserving signals and provide transparent user recovery paths.