What types of data does SIEM typically ingest?

The correct choice highlights that Security Information and Event Management (SIEM) systems are designed to aggregate and analyze various log and event data from different infrastructure components. This includes data from servers, network devices, firewalls, intrusion detection systems, and applications. The primary goal of SIEM is to provide a comprehensive view of an organization's security posture by correlating and analyzing this vast amount of data for potential security threats and incidents.

Monitoring a broad range of logs and events allows SIEM solutions to detect anomalies, facilitate compliance reporting, and support incident response. By focusing on diverse log sources, SIEM can effectively correlate events across the infrastructure and provide security teams with actionable insights.

The other options are too narrow or specific, which limits the effectiveness and purpose of a SIEM system. Financial transaction data alone doesn't encompass the broader security context needed for comprehensive analysis. Similarly, data from customer interactions or social media logs is not the primary focus for SIEM, which is centered around security and operational data from IT infrastructure rather than customer behavior or social media activity.