Microsoft

Microsoft Azure Event Hubs is a fully managed, real-time data ingestion service capable of receiving and processing millions of events per second. It serves as a streaming data pipeline for collecting telemetry, logs, and events from various Azure services, applications, and devices for downstream processing and analytics. 

In security contexts, Event Hubs acts as a central collection point for Azure diagnostic logs, activity logs, and security alerts from multiple Azure services and subscriptions. It enables real-time streaming of security data to external SIEM and XDR platforms, providing a scalable and reliable mechanism for exporting Azure security telemetry for centralized monitoring and threat detection.