Dark data is the information companies collect but never use—often sitting idle...

https://www.play-bookmarks.win/dark-data-is-the-55-of-stored-information-organizations-keep-but-never-use

Dark data is the information companies collect but never use—often sitting idle and forgotten. Studies show 60-80% of data falls into this category, leading to wasted storage and security risks. Ignoring dark data can cost businesses up to $2