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MacOS security bug allows unauthorized access

By Los Angeles Times
Published: November 29, 2017, 4:47pm

SAN JOSE, Calif. — A security bug in Apple’s new Mac operating system allows anyone to gain full administrator control of a computer without needing to enter a password — possibly even remotely.

Thanks to the bug, a user can gain unauthorized access into a Mac running MacOS High Sierra by logging in as “root” for username and clicking on the login button a few times without needing to enter a password. The bug reportedly is not in any other MacOS.

Apple issued a statement saying it is working on a software update for the bug and linked to a step-by-step instruction page to prevent unauthorized access. For those who do have High Sierra on their Macs and have experienced this bug, the best course of action is, as Apple says, to create a root password.

To do so, go to System Preferences, then to Users & Groups. Click the lock icon and enter your administrator name and password. Click Login Options, then click Join (or Edit). Click Open Directory Utility, choose the lock icon and re-enter the administrator name and password. In the menu bar in Directory Utility, click Edit and then click Enable Root User. Enter your new root password.

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