Dark data is information companies collect but never use—around 55% of stored...

https://wiki-dale.win/index.php/What_is_Garbage_In_Garbage_Out_in_AI_Data_Prep%3F

Dark data is information companies collect but never use—around 55% of stored data often sits idle. This inactive data wastes storage and backup costs and increases ransomware and breach risks since it’s overlooked in security checks