I think it is an accurate assessment that many (potentially millions) people would lose their files in such an event. Many people use cloud storage (e.g. Dropbo

I think it is an accurate assessment that many (potentially millions) people would lose their files in such an event. Many people use cloud storage (e.g. Dropbox, Google Drive) without a native client. Even on mobile, it is common to delete photos from the device after they have been synced/uploaded.