What is one of the rights concerning data subjects’ control over their personal data?

One of the fundamental rights concerning data subjects' control over their personal data is the right to object. This right empowers individuals to challenge the processing of their personal data in certain situations, such as when the data is being processed for direct marketing purposes or if they believe the processing is unfair or not in accordance with data protection laws. By exercising this right, data subjects can ask data controllers to stop processing their personal information, fostering a level of control and autonomy over how their data is used.

In contrast, denying access and being uninformed would primarily limit a data subject's ability to understand and manage how their personal data is handled. Limiting data types does not reflect an established individual right; instead, it relates to the principles of data minimization, which suggest collecting only the necessary data. Thus, the right to object stands out as a key mechanism for data subjects in asserting their control over their personal data.