Security Information and Event Management (SIEM) definition in Cybersecurity

Security Information and Event Management (SIEM) combines security information management (SIM) and security event management (SEM) to provide real-time analysis of security alerts generated by applications and network hardware. It helps organizations detect, analyze, and respond to security threats.

Open source or Free solutions

1. OSSIM (Open Source Security Information Management)
2. ELK Stack (Elasticsearch, Logstash, Kibana) for security information and event management

Paying solutions

1. Splunk
2. IBM QRadar