This is where you use id bridging. 1. Website fingerprints the browser, stores a cookie with an ID and a fingerprint. 2. During the next session, it fingerpri

This is where you use id bridging. 1. Website fingerprints the browser, stores a cookie with an ID and a fingerprint. 2. During the next session, it fingerprints again and compares with the cookie. If fingerprint changed, notify server about old and new fingerprint.