What is the primary function of SIEM?

The primary function of a Security Information and Event Management (SIEM) system is to provide real-time analysis of security alerts generated by various hardware and software components in an organization's IT infrastructure. SIEM systems collect and aggregate logs and events from multiple sources such as servers, network devices, and applications, allowing for centralized monitoring and analysis of security data.

By analyzing this information in real-time, SIEM solutions can help detect potential security threats and incidents more quickly, enabling organizations to respond effectively. This capability is essential for proactively managing security risks, ensuring compliance with regulatory requirements, and improving overall security posture.

The other options do not align with the main function of SIEM. Facilitating physical security measures pertains more to physical security devices and protocols; enhancing network bandwidth relates to network performance rather than security management; and managing user permissions focuses on access control rather than the comprehensive analysis of security alerts and events.