How to protect yourself from new security errors in Windows 10 and 11

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A new vulnerability has been discovered in the latest versions of Windows that hackers can use to remotely install programs, steal data and passwords, and even prevent users from accessing their computers. Microsoft says that all versions of Windows newer than Windows 10 version 1809 have been affected — including the beta version of Windows 11.

According to Microsoft’s bug report, the vulnerability stems from “extremely permissive access control lists (ACLs) in multiple system files, including the Security Accounts Manager (SAM) database.” The bug was not successfully exploited, but a Microsoft report warns that such an attack is “likely” given how severe the vulnerability is. In order to carry out an attack, an attacker would need direct access to a person’s computer – either physically, or by tricking them into downloading files loaded with malware. Once the hacker gains access, he can give himself full administrator control and “install programs; view, change, or delete data; or create new accounts with full user rights”.

Microsoft will ostensibly correct the issue in future security updates for Windows 10 and 11, but users should be careful until then. Practice common sense data security, such as not clicking on unknown email links or downloading files from sketchy websites, and using reliable anti-malware software.

There is also a temporary solution that limits access to vulnerable system files on your PC. This will keep hackers away but will make it more difficult to recover files using System Restore – so it won’t work as a long-term solution. However, it is worth considering whether you want to fully protect yourself from possible security breaches.

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First, you need to restrict access to the “%windir%system32config” system folder.

Use the taskbar to search for “PowerShell”. (Note: You can also perform these steps at a command prompt.) Right-click on “Windows PowerShell” from the results and click Run as administrator. In PowerShell, type the following command: icacls %windir%system32config*. */ Inherit: ePress “Enter”.

Next, you need to delete your system restore points. Make sure to do this after restricting access to %windir%system32config.

Right-click on My Computer from Windows File Explorer and select Properties. Click “System Protection” from the left menu. Click to highlight the local hard drive in the list of available drives, then click Configure. Click Delete, then Continue to confirm.

Once you delete your old backups, you can create a new system restore point if you want: Go back to the System Protection tab, select your drive, and click Create. Add a description of the restore point (such as date and time), then click OK.

[SlashGear]

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