Apple Releases First-Ever Background Security Improvement — Patches WebKit Vulnerability on iOS, iPadOS & macOS

Apple has released its first real Background Security Improvement update today, patching a WebKit Same Origin Policy vulnerability across iOS 26.3.1, iPadOS 26.3.1, and macOS Tahoe 26.3.1 — with a separate 26.3.2 build for MacBook Neo.



