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

https://atomic-wiki.win/index.php/What_Did_Gartner_Say_About_Agentic_AI_Storage_in_May_2026%3F

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