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

https://emilyscoolnews.urbanvellum.com/posts/what-is-garbage-in-garbage-out-for-ai-data-pipelines

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