Apple releases its first Background Security Improvement for macOS, iOS and iPadOS

Apple has started providing small security updates to iOS, iPadOS and macOS devices. These are dubbed Background Security Improvements that will offer minor system updates between the larger software ...
Macworld

Your iPhone and Mac might have updated overnight. Here’s why

Apple has issued its first Background Security Improvements update for iOS 26.3.1 and macOS 26.3.1 to fix a vulnerability in WebKit.
MacRumors

Apple Again Tests Background Security Updates in iOS 26.3 and macOS Tahoe 26.3

Apple is once again testing its new Background Security Improvement feature that first rolled out in iOS 26.1, iPadOS 26.1, and macOS Tahoe 26.1. Following a previous test earlier this week, ...
CNET

MacFixIt Forums on Mac OS X: startup problems solved; Black background glitch; Privileges problem solved

Startup hang solution This MacFixIt Forums thread (Solution for hanging loginwindow) describes a hang at startup (the login window never appears) that was also ultimately fixed by deleting preferences ...