Dark data is all the information your company stores but never uses—think of it...

https://lukaszaph075.almoheet-travel.com/how-do-i-extract-dicom-metadata-across-a-huge-imaging-archive

Dark data is all the information your company stores but never uses—think of it as digital clutter taking up space. Around 60%-80% of file data stays inactive, costing you money and creating security risks