Dark data is the info companies collect but don’t use, often making up 60-80%...

https://www.toro-bookmarks.win/dark-data-is-the-info-companies-keep-but-never-use-think-old-emails-documents

Dark data is the info companies collect but don’t use, often making up 60-80% of their stored data. It matters because keeping this inactive data costs money—some businesses waste up to $2.5 million a year on storage and management