Well the German Democratic Republic is unique among the former USSR countries in that it was unified with the Federal Republic of Germany. The latter already had a strong focus on privacy laws resulting from the Nazi time (meaning there was strong mistrust towards the state, but Nazis trying to hide in plain sight was obviously also relevant). But when the sheer amount of information the communist intelligence services were storing on their citizens became known after reunification this pre-existing privacy bias was put into overdrive, it confirmed all the worst fears west Germans already had about the state becoming too powerful.