Network sources say that the company has made changes to the built-in Microsoft Defender antivirus used in Windows 10. Now it will warn of a serious security threat if an attempt to block telemetry servers through the host’s file is recorded. Recall that the host’s file contains a database of domain names and is used when translating them into network addresses of web sites.

If you try to edit the host’s file to block telemetry servers, then Windows Defender will not allow saving the changes and will display a corresponding warning “SettingsModifier: win32 / HostsFileHijack”. This is classified as a serious security risk, so the modified host’s file cannot be saved until the user rejects the antivirus message.

Network sources say that the company has made changes to the built-in Microsoft Defender antivirus used in Windows 10. Now it will warn of a serious security threat if an attempt to block telemetry servers through the host’s file is recorded. Recall that the host’s file contains a database of domain names and is used when translating them into network addresses of web sites.

If you try to edit the hosts’ file to block telemetry servers, then Windows Defender will not allow saving the changes and will display a corresponding warning “SettingsModifier: win32 / HostsFileHijack”. This is classified as a serious security risk, so the modified hosts’ file cannot be saved until the user rejects the antivirus message.