Dark data is the info companies store but never use—think of old files or...

https://wiki-burner.win/index.php/Why_Do_RAG_Systems_Hallucinate_with_Messy_Enterprise_Data%3F

Dark data is the info companies store but never use—think of old files or unused backups. It can be up to 55% of all stored data, quietly costing millions and creating risks like security gaps