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

https://www.paste-bookmarks.win/dark-data-is-the-information-your-organization-collects-but-doesn-t-use-often

Dark data is the information companies collect but never use. It can make up 60-80% of stored data, taking up space and racketing up costs. Ignoring it wastes millions yearly, around $2.5 million on average