The new feature works by preventing malware and other third-party apps from disabling Microsoft Defender (formerly Windows Defender (opens in new tab)) features without a user's knowledge.
According to a blog post (opens in new tab) from Microsoft, Tamper Protection will prevent malicious apps from disabling virus and threat protection, disabling real-time protection, turning off behavior monitoring, disabling Defender's antivirus components including IOfficeAntivirus, disabling cloud-delivered protection and removing security intelligence updates.
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The software giant says that Tamper Protection “essentially locks Microsoft Defender” and prevents security settings from being changed either by third-party apps or using methods such as configuring settings in Registry Editor on a Windows device, changing settings through PowerShell CMDlets, and editing or removing security settings through group policies.
The free version of Microsoft Defender that ships with Windows 10 (opens in new tab) will be getting the new Tamper Protection feature and it will also be rolling out to the commercial version of the software, Microsoft Defender Advanced Threat Protection (ATP).
Microsoft first began work on Tamper Protection in December 2018 when the feature was made available to Windows Insiders for testing. In March of this year, the company rolled out Tamper Protection for even more tests on Microsoft Defender ATP before its release today.
Beginning today, the feature is now available for all Microsoft Defender users and it will be enabled by default for all users in the coming weeks as part of a multi-stage rollout.
However, if you don't want to wait, you can now enable Tamper Protection manually by turning it on in the Windows Security options page.
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Via ZDNet (opens in new tab)