Security Information and Event Management (SIEM) is a log aggregator solution [ combination of both Security Information Management (SIM) and Security Event Management (SEM) ] which collects and analyzes the data of many different resources & applications across the entire IT infrastructure, probes for suspicious activity and gives a real time visibility about the activity that would introduce risks to the Organization.

SIEM stores, aggregates, normalizes and applies rules to that data to discover trends, detects threats, and enables organizations to investigate any alerts.