From time to time I do think about the Carrington Event and wonder what would happen if something like that happened in today’s time. Because of exactly the reason of how reliant we are on electronical data.

How resilient is our infrastructure really? Especially satellites used for communication. I assume that most critical cold-storage is mostly fine. But all the small personal electronic devices will probably be toast.

Physical media can suffer the same fate, but not usually at the hands of a single entity.