Dark data is the hidden information companies store but rarely use—about 60% to...

https://wiki-legion.win/index.php/How_Do_I_Keep_Drafts_and_Duplicates_Out_of_a_Vector_Database%3F

Dark data is the hidden information companies store but rarely use—about 60% to 80% of inactive files just sitting there. It matters because keeping this clutter costs millions and creates security risks