Dark data is all the stored info your team doesn’t use but still pays to keep....

https://www.ready-bookmarks.win/dark-data-is-the-info-companies-collect-but-don-t-use-up-to-55-of-all-data

Dark data is all the stored info your team doesn’t use but still pays to keep. It can make up 55% of your data, driving up costs and security risks. Plus, when AI tools pull from that clutter, they get noisy results, slowing projects down