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

https://instaquoteapp.com/how-do-you-run-a-deletion-workflow-without-getting-sued-later/

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