What's Device Fingerprinting?

Device fingerprinting identifies and tracks users by collecting data points from their browser, hardware, and OS—unlike cookies, it reads inherent device signals rather than storing data locally. Fingerprints are built from attributes like IP address, user agent, screen resolution, and mouse movement, using both active and passive collection methods. In a Zero Trust security model, fingerprinting serves as a foundational signal for ongoing device integrity verification, though it should complement other security layers rather than replace them.