Dark data is the information companies store but never use. It can make up 60...

https://www.third-bookmarks.win/dark-data-is-all-the-information-businesses-collect-but-never-use-like-old

Dark data is the information companies store but never use. It can make up 60 to 80% of all data, quietly eating up storage and driving up costs. Businesses often waste millions—around $2.5 million yearly—managing this unused data