Dark data is the information companies collect but never use—think of old...

https://super-wiki.win/index.php/How_Do_Sensitive_Data_Scanners_Work_on_Unstructured_Files%3F

Dark data is the information companies collect but never use—think of old files, logs, or emails just sitting around. It can make up 60-80% of all inactive data, taking up space and costing businesses an average of $2.5 million every year