Security
Advanced
What is SIEM (Security Information and Event Management)?
A platform that collects, correlates, and analyzes security events from across an organization to detect threats and incidents.
SIEM systems aggregate logs from firewalls, servers, applications, and endpoints, then apply correlation rules to identify suspicious patterns. A single failed login is normal; 1000 failed logins across 50 servers in 5 minutes triggers an alert.
Features include real-time monitoring, threat detection, compliance reporting, forensic investigation, and incident response workflows. Popular solutions include Splunk, IBM QRadar, Microsoft Sentinel, and Elastic Security. SIEM is central to Security Operations Centers (SOCs).
