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How to protect your Mac from the huge security vulnerability that affects macOS High Sierra

Apple has announced that it is working on a patch that fixes a security hole that allows a hacker to take control of your computer. In the meantime, there is a simple way to protect yourself.

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macbook pro high sierra
macbook pro high sierra

Finally your Mac is not so secure. A new flaw in High Sierra macOS makes it extremely vulnerable to hacker attacks. Fortunately, there is a simple way to protect yourself, as long as you follow Apple’s recommendations in this regard.

As often, it’s on Twitter that the news came Tuesday, November 28. The flaw is worrying, since it allows an attacker to take control of any MacOS High Sierra computer whose session is open. It is enough for the hacker to go in the menu “Users” of “System Preferences”. The only thing left for the hacker is to type “root” as the username and leave the password field blank.

The manipulation simply gives root access – that is, full control – of any Mac to a malicious person. And as bad news never comes alone, it seems that if your Mac has the option of screen sharing enabled, manipulation could be done remotely.

The flaw was already spotted by a user of Apple forums November 13 last explains MacG , but it was presented at the time as a solution to a bug that made ineffective user accounts.

How to protect your Mac

Apple is currently working on a solution to this problem, but has already published a list of instructions on the best way to protect your computer.

“We are working on an update that would solve this problem,” the company said in a statement. “In the meantime, setting up a password for root access will prevent unauthorized access to your Mac.”

Instructions are available at this address and proceed as follows:

  • 1. Choose Apple menu> System Preferences and click Users and Groups (or Accounts).
  • 2. Click the lock icon and enter an administrator name and password.
  • 3. Click Login Options.
  • 4. Click Join (or Edit).
  • 5. Click Open Directory Utility.
  • 6. Click the lock icon in the Directory Utility window, and enter an administrator name and password.
  • 7. On the Directory Utility menu bar, do the following:
  • * Select Edit> Enable Root User, and enter the password you want to use for the root user.
  • * Or, select Edit> Disable root user.

Simple no? But that’s not all. “If a root user is already enabled,” says Apple, “to make sure that the blank password is not enabled, please follow these instructions.” These are only available for the moment in English, but we translate them here:

  • 1. Choose Apple menu> System Preferences and click Users and Groups (or Accounts).
  • 2. Click the lock icon and enter an administrator name and password.
  • 3. Click Login Options.
  • 4. Click Join (or Edit).
  • 5. Click Open Directory Utility.
  • 6. Click the icon in the Directory Utility window, and then type an administrator name and password.
  • 7. In the Directory Utility menu bar, choose Edit, and then Change Root Password
  • 8. Enter a new Root password

These steps are relatively simple to follow. But that also means that until Apple officially releases a patch, it will be up to you to protect yourself from hackers.

– Adapted by Fabien Jannic-Cherbonnel. Find the original version on Mashable.

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