Dark data is the inactive or unused info companies store but rarely access—up...

https://www.third-bookmarks.win/dark-data-is-the-information-your-business-collects-but-never-uses-often

Dark data is the inactive or unused info companies store but rarely access—up to 80% of it. This hidden clutter wastes money, sometimes costing $2.5 million a year, and creates noise that confuses AI projects