Literally the only significant amount of data I've ever lost in my life, either on a personal or professional context, were: 1. half a decade of emails dropped

Literally the only significant amount of data I've ever lost in my life, either on a personal or professional context, were: 1. half a decade of emails dropped by Microsoft from my old Hotmail account with no reason or warning; 2. all my highlights on a 3000-page book series lost due to a iOS update breaking compatibility with the app I was using for it.