Dark data is all the information companies keep but rarely use—often 55% of...

https://holdenssplendiddigests.zenbloomer.com/posts/what-should-we-delete-first-when-cleaning-up-dark-data

Dark data is all the information companies keep but rarely use—often 55% of what they store sits inactive. This hidden data adds to storage costs, creates risks like security gaps, and clutters AI projects with unnecessary noise