What type of information does ISO/IEC 27004 focus on?

ISO/IEC 27004 is specifically focused on information security metrics. This standard provides guidelines for organizations to measure the effectiveness of their information security management systems. It emphasizes the importance of metrics and how they can be used to assess and enhance the implementation of information security controls and frameworks.

By establishing a robust set of metrics, organizations can track progress, identify areas for improvement, and demonstrate their compliance with information security policies and objectives. This information is crucial for stakeholders to understand how well security measures are functioning and to ensure that the overall information security posture is strong.

In contrast to the other options, business continuity planning, network performance statistics, and customer satisfaction analysis, while important in their own right, do not align with the specific focus of ISO/IEC 27004, which is entirely centered on the metrics related to information security.