What is data segmentation in privacy protection and why is it used?

What is data segmentation in privacy protection and why is it used?

• A. Dividing data into separate segments to limit exposure and enforce least privilege.
• B. Combining all data into a single store for speed.
• C. Removing all security controls.
• D. Sharing data publicly with all departments.

Answer: (A)

Data segmentation means dividing data into separate segments so that access to each segment can be controlled independently. This supports privacy protection by limiting who can see what, which reduces exposure and makes it possible to enforce least privilege — users access only the data they truly need for their role. It also helps with compliance, because you can apply purpose-based access and data minimization more effectively, and if a breach occurs, the impact is limited to the affected segment rather than all data. This approach is best because it directly addresses risk reduction and access control. Splitting data into a single store makes broad access easier and increases the potential impact of any breach. Removing security controls eliminates protection entirely. Publicly sharing data with all departments defeats confidentiality and purpose limitation.

Data segmentation means dividing data into separate segments so that access to each segment can be controlled independently. This supports privacy protection by limiting who can see what, which reduces exposure and makes it possible to enforce least privilege — users access only the data they truly need for their role. It also helps with compliance, because you can apply purpose-based access and data minimization more effectively, and if a breach occurs, the impact is limited to the affected segment rather than all data.

This approach is best because it directly addresses risk reduction and access control. Splitting data into a single store makes broad access easier and increases the potential impact of any breach. Removing security controls eliminates protection entirely. Publicly sharing data with all departments defeats confidentiality and purpose limitation.