Dark data is the information your company collects but never uses—like old...

https://highstylife.com/how-do-pharma-teams-tag-research-files-with-project-codes/

Dark data is the information your company collects but never uses—like old files, emails, or logs. Around 55% of data is dark, quietly taking up space and driving up storage costs. It also adds risk and creates noise that messes with AI projects