Complex sentence: Security information and event management (SIEM) software products and services combine security information management (SIM) and security event management (SEM), and provide real-time analysis of security alerts generated by network hardware and applications.
Split into simpler sentences: Security information and event management (SIEM) software products and services combine security information management (SIM) and security event management (SEM). SIEM technology provides real-time analysis of security alerts generated by network hardware and applications.