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The primary method used by IBM QRadar SIEM V7.5 to alert users to problems is through System Notifications. Here’s how it works:

System Notifications: These are alerts generated by QRadar to inform users of various issues, such as system performance problems, license issues, or security incidents.

Visibility: Notifications are prominently displayed in the QRadar GUI, ensuring that administrators and users can quickly identify and respond to any problems.

Customization: Users can configure notification settings to receive alerts for specific types of issues, ensuring they stay informed about critical aspects of the system’s health and performance.

ReferencesIBM QRadar SIEM documentation outlines the use of System Notifications as theprimary method for alerting users to issues, detailing how to configure and manage these alerts.

In IBM QRadar SIEM V7.5, the default value for the maximum number of active offenses is set to 2500. This limit is in place to manage system performance and ensure efficient processing of security incidents. Here’s the detailed information:

Default Setting: The default setting for the maximum number of active offenses is 2500.

Impact: If this limit is reached, QRadar will not generate new offenses until some of the existing offenses are closed or archived.

Configuration: Administrators can adjust this setting based on their organizational needs, but the default value is 2500.

ReferencesThis information is detailed in the QRadar SIEM configuration and tuning guides, which specify default settings and provide instructions for modifying the maximum number of active offenses if necessary.

Administrators can download QRadar security content from the following two resources:

QRadar Application Repository: This repository contains a wide range of applications, rules, reports, and other content specifically designed for QRadar.

IBM Security App Exchange: A platform where users can find and download security applications, including those for QRadar. It offers a variety of tools to extend and enhance the functionality of QRadar SIEM.

These resources provide curated and validated security content, ensuring that administrators have access to the latest and most effective tools for their security needs.

ReferencesIBM QRadar documentation and support resources detail the QRadar Application Repository and IBM Security App Exchange as primary sources for downloading and updating QRadar security content.