It's very often different companies and different systems. It's rarely the companies with mature and well-implemented security, privacy, and governance systems

It's very often different companies and different systems. It's rarely the companies with mature and well-implemented security, privacy, and governance systems that do Equifax-style data spills. To draw an imperfect comparison - improving the efficiency of electric car motors does little for those driving dino-juice-mobiles. That we as a society have the tools and ability to do better does not mean that every person and organization adopted them immediately and perfectly.