🖐️
Device Fingerprint
Tracking
High-entropy identifier derived from device/browser attributes to enable recognition without cookies.
Definition
Device fingerprinting combines multiple attributes (hardware, OS, browser APIs, timing signals) to create a high-entropy identifier. It often supports probabilistic matching and resilience to cookie deletion.
In plain English
High-entropy identifier derived from device/browser attributes to enable recognition without cookies.
Why this matters
Why it matters: Fingerprinting undermines user choice by enabling tracking outside traditional storage controls.
Example
Example: Reduce exposed entropy via browser protections, partitioning, and limiting high-precision APIs.