![]() Devices using either the Windows built-in antivirus or another security solution can benefit from these updates. ![]() Defender updates also contain critical performance fixes that will improve the user experience. The devices on which these deployments are made are inadequately protected until they receive the first antimalware software update. This is because the OS installation images may contain outdated antimalware software binaries. Confirm it, Ransomware Shield adds the app to your Exceptions list itself and there's nothing else to do.Ĭontrolled Folders could be better, then, but it did its core job, keeping us safe from a threat that the antivirus engine missed.The first hours of a newly installed Windows deployment can leave the system vulnerable because of a Microsoft Defender protection gap. Controlled Folders simply blocks everything it doesn't recognize, and previously we've found some legitimate programs refused to run until we manually added them to an Exceptions list.Īvast's Ransomware Shield is smarter, more like a firewall when it detects an unauthorized access to a folder, it alerts you, but also asks if the process is legitimate. This time, Defender displayed an alert when our ransomware tried to access the folder, and it wasn't able to encrypt any documents. We turned Controlled Folders on, added our test folder to the list, and ran the ransomware simulator again. Fortunately, Defender has a second layer of protection in its Controlled Folders feature (Security Center > Virus & Threat Protection > Manage Ransomware Protection.) Turn this on and it automatically blocks unauthorized apps from accessing key document folders (Documents, Pictures, Videos, Music, more) and you can easily add more.
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