Windows Defender Antivirus has become the very first antivirus software to have the ability to run inside a sandbox environment. Sandboxing is a process that runs an application in a safe environment isolated from the rest of the operating system and applications on a computer. Microsoft is gradually rolling out a Windows Insider preview supporting the sandboxing feature in Defender. Google Project Zero’s researcher Tavis Ormandy, who found and disclosed several of these types of flaws in the past year, lauded Microsoft’s effort on Twitter, saying it was “game-changing”
Source: https://thehackernews.com/2018/10/windows-defender-antivirus-sandbox.html