Yes, you can log into macOS High Sierra's root account with no password.

In this special "emergency" edition of the podcast computer security veterans Graham Cluley and Carole Theriault discuss the breaking news of a serious Apple macOS bug that allows anyone to log into your Mac with root admin rights, without having to enter a password.

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Warning: This podcast may contain nuts, adult themes, and rude language.

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Links:

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• Huge MacOS bug lets anyone login as root without a password: what you need to know
• How to enable the root user on your Mac or change your root password - Apple Support
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