Which Tableau Server component requires planning for data security?

When considering which Tableau Server component necessitates careful planning for data security, the focus on external data connections is paramount. External data connections are critical because they bridge Tableau Server with various data sources, such as databases, cloud services, or other external applications. Each of these connections has its own security implications.

To safeguard sensitive data, it’s crucial to implement robust security measures in the setup of these connections. This may include configuring user authentication, managing permissions effectively, and ensuring that data is encrypted in transit and at rest. A failure to consider the security of external data connections can lead to unauthorized access to sensitive information, data breaches, and compliance issues, depending on the nature of the data being handled.

In contrast, other components such as database configuration, the application server, and map visualizations, while they may have security considerations, do not involve directly accessing external data outside of the organization's immediate control. Therefore, they do not carry the same level of risk related to data security as external data connections do. Thus, careful planning and security measures specifically targeting external data connections are essential for maintaining data integrity and confidentiality in a Tableau Server environment.