Dark data is the huge chunk of company info—often 55% or more—that sits unused...

https://paxtonssmartperspective.cavandoragh.org/what-did-gartner-say-about-agentic-ai-storage-in-may-2026

Dark data is the huge chunk of company info—often 55% or more—that sits unused and forgotten. It wastes up to $2.5 million yearly on storage and adds risk by cluttering security checks