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

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

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