Overview
- Safari now enables advanced fingerprinting protection by default in every tab once devices are updated to iOS 26 or macOS Tahoe 26.
- The feature standardizes and adds noise to device and browser signals so trackers have a harder time creating unique profiles.
- The update restricts high‑entropy web APIs and limits script‑written storage and navigation state reads that can yield stable identifiers.
- Link Tracking Protection continues to function as before, and normal cookies for signed‑in sites are still retained.
- Users can confirm or change the setting in Safari’s Advanced preferences and temporarily relax protections if a site breaks, with the automatic rollout expected to prompt adtech and analytics vendors to adapt.