Dark data is all the information companies keep but rarely use—often 55% of...

https://spark-wiki.win/index.php/What_Is_the_Best_Way_to_Clean_Up_Old_Media_Assets_on_Shared_Storage%3F

Dark data is all the information companies keep but rarely use—often 55% of what they store sits inactive. This hidden data adds to storage costs, creates risks like security gaps, and clutters AI projects with unnecessary noise