The Catalan Data Protection Authority is an independent entity that ensures the guarantee of the rights to the protection of personal data and access to the information in the public entities and private companies exercising public functions. We inform on what the rights are in this matter, how they are exercised and what to do in case they are not respected. We also advise on the obligations provided for in the legislation and monitor that the entities comply with them. Among these, the obligation to perform data protection by design and by default.