What does ISO 17799 specify?

ISO 17799 specifies best practices in information systems security, serving as a guideline for organizations to manage and protect their information assets. The standard outlines a framework that includes organizational security policies, risk management, access control, incident management, and compliance measures among other security principles. By following the practices set forth in ISO 17799, organizations can effectively reduce the risk of security breaches and safeguard sensitive information.

The other options, while they touch on important aspects of security and compliance, do not accurately capture the broad scope of ISO 17799. For example, the standard is not limited to customer data in financial institutions or specific responsibilities for financial information accuracy. Additionally, it does not pertain to medical security and privacy rules, which would relate more closely to other regulations like HIPAA. Thus, the emphasis on best practices in information systems security provides a comprehensive understanding of how organizations can implement effective security measures.