SIEM stands for Security Information and Event Management. It’s a system that combines Security Information Management (SIM) and Security Event Management (SEM) to provide real-time analysis and monitoring of security alerts generated by various hardware and software infrastructures in an organization.

SIEM systems collect logs from multiple sources such as servers, network devices, applications, and security devices (firewalls, intrusion detection systems).They continuously monitor and analyze these logs in real-time to detect unusual activities, such as potential security threats or breaches.