Microsoft Defender Advanced Threat Protection

Welcome to attack surface reduction submissions for enterprise subscription holders. Sign in using your corporate account to report problems with attack surface reduction rules and network protection.

To resolve detection problems yourself, read the troubleshooting guides for attack surface reduction rules and network protection.

Attack surface reduction rules

Report undetected suspicious activities or activities that have been incorrectly detected.

Network protection

Report problems with the detection and blocking of URLs and IP addresses.