Dark data is all the information companies collect but never use. It can make...

https://www.bookmarkmaster.win/dark-data-is-the-inactive-or-unused-information-stored-across-your

Dark data is all the information companies collect but never use. It can make up 60 to 80% of stored data, quietly wasting space and resources. Ignoring it costs businesses around $2.5 million every year in unnecessary storage and missed opportunities