What is a SIEM and how does it work?
Security Information and Event Management (SIEM) is monitoring software that is installed in a company's computer network and that detects and analyzes the activities of users, company software and applications, or perhaps attackers.
- SIEM collects event log data from a variety of sources
- they aggregate large volumes of data from different applications, devices, servers and from users
- performs real-time analysis of collected data and identifies activities that deviate from normal and takes appropriate action
- use predefined rules that help identify threats in time and generate alerts and notifications
What is a SIEM for?
- SIEM tools help organizations to detect, analyze and respond to threats before they cause damage to business operations
- provides organizations with visibility into their network activity so they can quickly respond to potential cyber attacks and meet regulatory compliance requirements
- SIEM tools are one of the technical measures to increase cyber security, for example for the needs of NIS2