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

https://noon-wiki.win/index.php/Is_Dark_Data_Mostly_a_People_Problem_or_a_Tooling_Problem%3F

Dark data is all the info companies collect but never use—think emails, old reports, or forgotten files. It makes up about 60-80% of stored data but sits idle, costing businesses up to $2.5 million each year in wasted storage and missed insights