Dark data is the stored information companies rarely use, yet it piles up...

https://hotel-wiki.win/index.php/Komprise_Analysis_vs_Other_File_Analytics_Tools:_What_Sets_It_Apart%3F

Dark data is the stored information companies rarely use, yet it piles up quietly—about 55% of data goes untouched. This inactive data not only wastes money, sometimes over $2.5 million, but also creates risks and clutters AI projects with noise