HYAS Protect, a SaaS protective DNS solution, identifies and blocks network communication to command and control (C2) infrastructure and phishing sites used in cyber attacks. Microsoft Defender for Endpoint integration enables enterprises to block attacker communications and helps stop attacks against their endpoints. The joint solution benefits by blocking phishing, malware, and ransomware communications. It also reduces security operations center (SOC) productivity by reducing false positive alerts and resulting alert fatigue. The solution is deployed using Microsoft Azure and Azure Event Hubs.
Source: https://www.helpnetsecurity.com/2021/04/01/hyas-protect-microsoft-defender/