Apple releases security update for iOS 12, macOS Mojave, High Sierra, and Sierra

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Macworld:

Apple on Thursday released a security update for iOS 12 and macOS Mojave, High Sierra and Sierra.

The update is for iOS 12 devices that cannot upgrade to iOS 13, macOS Mojave 10.14.6, macOS High Sierra 10.13.6, and macOS Sierra 10.12.6.

As always, security updates are important so backup your device and then install.