Dark data is all the info companies keep but never use—think old files, emails,...

https://www.wall-bookmarkings.win/dark-data-refers-to-the-55-of-stored-information-that-businesses-collect-but

Dark data is all the info companies keep but never use—think old files, emails, or system logs. It makes up 60-80% of stored data but sits idle, costing businesses up to $2.5 million each year just to store and manage