Dark data is the unused information companies store but never analyze. It can...

https://www.bookmarking-presto.win/dark-data-is-the-inactive-or-unused-information-stored-in-your-systems-often

Dark data is the unused information companies store but never analyze. It can make up 60-80% of all data, quietly taking up space and costing businesses up to $2.5 million each year in wasted storage and missed opportunities