What is SIEM?
SIEM stands for Security Information & Event Management and is a solution that combines legacy tools SIM (Security Information Management) and SEM (Security Event Management) (Security Event Management). SOAR, which automates threat response, and UEBA, which detects threats based on abnormal behaviour, are both included in modern SIEM solutions. They work together to provide faster detection and response to security events or incidents in an IT environment. It provides a comprehensive and centralised view of an IT infrastructure's security posture and provides cyber security professionals with insights into the activities occurring within their IT environment.
How does SIEM work?
SIEM software collects and aggregates log data from across the IT infrastructure, from cloud systems and applications to network and security devices like firewalls and antivirus. The incident or event is then identified, classified, and analyzed by SIEM. SIEM analytics provides real-time alerts, dashboards, and reports to key business and management units. Modern SIEMs also use unsupervised machine learning to detect anomalies in log data (User and Entity Behavior Analytics).
Why is SIEM important?
SIEM is a security solution that assists organizations in identifying potential security threats and vulnerabilities before they disrupt business operations. It identifies anomalous user behaviour and employs artificial intelligence to automate many of the manual processes associated with threat detection and incident response, and it has become a standard in modern-day security operation centers (SOCs) for security and compliance management use cases.
The benefits of SIEM
Quickly detecting and identifying security events is just one of the many features that makes SIEM, an excellent tool for businesses and IT departments. Some of the potential benefits of SIEM as a service include:
- Increased efficiency
- Preventing potential security breaches
- Reducing the impact of security events
- Saving money
- Better reporting, log collection, analysis and retention
- IT compliance