Dark data is the information companies collect but don’t use—like old files or...

https://zaneznae304.lucialpiazzale.com/how-do-i-find-duplicate-files-across-nas-and-object-storage

Dark data is the information companies collect but don’t use—like old files or unused emails. It can be a big problem because 55% of stored data falls into this category, leading to wasted storage costs and security risks