Dark data is all the info companies collect but never use—like old files or...

https://post-wiki.win/index.php/Why_Do_People_Say_Unused_Data_Is_Growing_20%25_CAGR_Through_2027%3F

Dark data is all the info companies collect but never use—like old files or unused logs. It can make up 60-80% of your stored data. This inactive info costs businesses millions each year in storage and management