Raising alarming privacy concerns, it means anyone with physical access to your MacBook or iMac can create a phantom profile that won’t show up on real admin accounts if the machine is running the new High Sierra operating system. In the device’s System Preferences, under Users & Groups, you can click on the lock and gain system administrator access by simply entering the username “root” and leaving the password blank. After hitting enter a few times it grants access. Once that is done, the trick can be used to log into the computer at any time. The flaw appears to have been first reported by software developer Lemi Orhan Ergin who tweeted the fault to Apple’s support team this morning. Dear @AppleSupport, we noticed a *HUGE* security issue at MacOS High Sierra. Anyone can login as "root" with empty password after clicking on login button several times. Are you aware of it @Apple? — Lemi Orhan Ergin (@lemiorhan) November 28, 2017 You can access it via System Preferences>Users & Groups>Click the lock to make changes. Then use "root" with no password. And try it for several times. Result is unbelievable! pic.twitter.com/m11qrEvECs — Lemi Orhan Ergin (@lemiorhan) November 28, 2017 The flaw has been confirmed by a number of users and reported by various tech publications. As Forbes points out, while someone needs to have physical access to your computer, the flaw is problematic in certain scenarios. For instance thieves now have an easy way to get into an Apple computer they’ve stolen and third parties like law enforcement officials could easily login to a suspect’s private computer. Just tested the apple root login bug. You can log in as root even after the machi was rebooted pic.twitter.com/fTHZ7nkcUp — Amit Serper (@0xAmit) November 28, 2017 Just checked, works, on first try.This is not good. — Stupid, Incompetent and Disappointing Minion (@Matticide_) November 28, 2017 Most security flaws are so esoteric that normals like me can't really comprehend them, so I salute Apple for building such an accessible flaw. https://t.co/yAYMpd6duR — Tom Gara (@tomgara) November 28, 2017 movies with "hacking" would be a lot less thrilling if all you had to do was hit the