SIEM Evolution – Making SIEM Smarter Not Fatter
Decades ago, SIEMs operated solely on-premises, with legacy vendors employing a straightforward architecture typically consisting of a collector, logger, and an ESM. These systems focused primarily on enforcing compliance controls, employing simple rules to trigger actions. For CISOs at the time, purchasing software typically involved perpetual licenses, with on-prem deployment and a justified hardware cost spread over a five-year amortization period.
