SAN FRANCISCO — Apple pushed out a fix for a serious security bug in computers running its most recent operating system on Wednesday morning, less than a day after it was first widely reported.
The bug in the Apple operating system allowed anyone with physical access to a Mac running the latest version of Apple's operating system to easily infiltrate the computer and gain full access to everything on it.
It only affected Macs that run the latest version of Apple's operating system software, MacOS High Sierra.
Apple users need to install the latest update to their operating system to correct the problem. To do so:
Open the App Store app on the Mac.
Click Updates in the App Store toolbar
Use the Update buttons to download and install any updates listed.
Updates installed in the last 30 days appear below this list.