Dark data is the inactive info your company stores but doesn’t use—often 60-80%...

https://star-wiki.win/index.php/Why_Do_RAG_Pipelines_Get_Worse_When_You_Add_More_Documents%3F

Dark data is the inactive info your company stores but doesn’t use—often 60-80% of all data. It increases risks like ransomware exposure since old files may lack proper security