Dark data is the hidden information companies store but never use—up to 55% of...

https://iris-wiki.win/index.php/How_Do_I_Extract_DICOM_Metadata_Across_a_Huge_Imaging_Archive%3F

Dark data is the hidden information companies store but never use—up to 55% of all data. It piles up quietly, costing millions in storage and creating risks like security gaps