Security information and event management
As the amount of data grows, it becomes increasingly important to have traceability in IT environments. Organizations need to collect safety-relevant logs to monitor, correlate and analyze them in order to detect unauthorized/unwanted activities in their IT systems. The logs need to be centralized to allow trouble-shooting and monitoring.
Security Information and Event Management (SIEM) is the generic term for systems that address this need. Not having SIEM today is comparable to the lack of a burglary alarm on your premise, as a digital attacker can easily escape detection in networks and systems without alarms going off and security knowing about it.