Security Information and Event Management (SIEM) supports real-time security event monitoring by collecting, correlating, and analyzing security-related data from various sources across an organization's network infrastructure, such as firewalls, intrusion detection systems, and servers. This centralized approach allows for the detection of security threats and anomalies as they occur, enabling swift response actions.
For instance, SIEM systems can monitor login attempts across different systems and identify patterns that may suggest a brute-force attack. If multiple failed login attempts are detected from a single IP address within a short timeframe, the SIEM can trigger an alert for further investigation or automatically block the IP.
Moreover, SIEM solutions often employ advanced analytics and machine learning to discern normal from malicious activities, reducing the burden on security teams and minimizing the risk of human error.
In the context of cloud computing, services like Tencent Cloud's Cloud Security Center offer integrated SIEM capabilities. It provides real-time threat detection and response by collecting and analyzing logs from various cloud services and on-premises environments, helping organizations maintain a robust security posture in the cloud.