WHAT IS SIEM? Security information and event management (SIEM) is an approach to Cybersecurity management that combines SIM (security information management) and SEM (security event management) functions into one security management system. The term security information event management (SIEM), coined by Mark Nicolett and Amrit Williams of Gartner in 2005 , the product capabilities of gathering, analyzing and presenting information from network and security devices identity and access-management applications vulnerability management and policy-compliance tools operating-system, database and application logs external threat data A key focus is to monitor and help manage user and service privileges, directory services and other[clarification needed] system-configuration changes; as well as providing log auditing and review and incident response. WHY WE NEED? IT environments are growing ever more distributed, complex and difficult to manage, making the role of security information and eve