In this article Issa Luna Pla analyzes the impact and effects of international legislation on the right to access public information in social security and public healthcare institutions, in the view of the latter’s contribution to modern democratic systems. Initially, she explores the consequences of transparency in government, before going on to analyze its results in legislative reofrm processes. Finally, Luna Pla emphasizes the importance of adopting legislation and policies to protect presonal data that complement the right to public information and which are essential in social security and public health care institutions.