Security information and event management (SIEM) tools collect and aggregate log and event data to help identify and track breaches. They are powerful systems that give enterprise security professionals both insight into what’s happening in their IT environment right now and a track record of relevant events that have happened in the past. The term “SIEM” was actually coined by Gartner analysts in 2005, and they continue to rate the various vendors using their Magic Quadrant methodology. Companies in the “Leaders” quadrant include Splunk, IBM, Securonix, Exabeam and LogRythm.”]