Or any other attack. I remember we had such a centralized registration system. It was used to great effect by the German Nazis when they occupied our country. Of course, occupation by foreign aggressors is highly unlikely in Estonia. Unless history repeats itself as it has (in Estonia) dozens of times.
Do you want to advance your society and make life more convenient for the people or do you want to live in constant fear and create unnecessary complexities for the people? We put a lot of effort in creating secure systems, we audit them constantly, and we get a plethora of cyber attacks from Russians on a constant basis, but they haven't gotten through yet.
We believe in living the best life we can, through the means of making life as convenient as we can, and we're very happy our government thinks the same. I've lived abroad many times, in many countries, and every single time was miserable because of the unnecessary complexity every basic thing involved. I very much doubt that complexity was for security reasons, more like the incompetence of the government bureaucrats to create a cohesive system that interoperates with all the different parts.
I want my health system to be both resilient and efficient. Why? Because generally when unforeseen black-swan-type catastrophic events produce high demand in the health system, chances are other infrastructure is also affected by whatever that event was.
If the last pandemic has shown anything it is that if great minds come together and cast aside their corporations strategic or financial incentives for a moment, we can have the nice things — so for example tools that excell in multiple dimensions at once that many described as incompatible with each other: convenience, resilience, privacy, ...
If we want to move things forward, we should do our level best to not fall into the trap of false dichotomies. What is often framed as a fundamental dichotomy is usually just a tension that people with vested interests abuse to get a solution that suits them. That is not where real innovation or good engineering happens.
