Dark data is the information companies collect but never use, often making up...

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

Dark data is the information companies collect but never use, often making up 60-80% of stored data. This hidden data can clog storage, slow systems, and rack up costs—some businesses waste over $2.5 million each year managing it