"Microsoft was not the first to sandbox Windows Defender. Last year, experts from security outfit Trail of Bits, who also specialize in virtualization, created

"Microsoft was not the first to sandbox Windows Defender. Last year, experts from security outfit Trail of Bits, who also specialize in virtualization, created a framework that could run Windows applications in their own containers. Windows Defender was one of the projects that Trail of Bits was able to containerize successfully and open-sourced it."