SIEM
SIEM platforms collect, analyze, and correlate security events to detect threats and support incident response. We explore top tools, open-source options, and real-world use cases.
Top 13 Open Source SIEM Tools in 2025
Unlike commercial SIEMs such as ManageEngine Log360, open-source SIEM tools commonly lack core SIEM capabilities including event correlation, log analytics, alerting, or require combining with other tools. However, several network defensive tools (e.g., intrusion detection and prevention systems and network monitoring tools) can be used as SIEM tools with fine tuning.
Top 10+ SIEM Systems & How to Choose the Best Solution
SIEM systems have evolved to become more than log aggregation tools. Some vendors developed unified product suites with UEBA, SOAR, and EDR capabilities, claiming they are “next-gen” SIEMs. Others offer products focused on traditional event and log management (e.g., SolarWinds SEM).
Top 8 SIEM Use Cases and Real-life Examples in 2025
We previously explained open source & commercial SIEM tools, including how to select the best solution.