Microsoft Defender ATP: Attack Surface Reduction Gary / October 10, 2020 Secret tip. Running Windows Pro? Not a Defender ATP customer. They still work with defender standalone. Pre-configure ASR even if you use a third party solution. If your primary AV fails to get loaded you should be in a decent protected state out of the box. #infosec https://t.co/1K41kDZTf0— Root (@rootsecdev) October 10, 2020