Dark data is the information organizations collect but never use. It can be 60...

https://www.a1bookmarks.win/dark-data-is-the-information-companies-collect-but-never-use-often-making-up

Dark data is the information organizations collect but never use. It can be 60 to 80% of your stored data, sitting idle and costing companies up to $2.5 million a year in storage and management