Dark data is the info hidden away in your storage that no one’s using—think 60%...

https://harperscoolthoughts.inkharbory.com/posts/what-is-the-real-cost-of-a-data-breach-in-2025

Dark data is the info hidden away in your storage that no one’s using—think 60% to 80% of inactive files just sitting there. It’s a real problem because it wastes space, drives up costs, and adds noise that messes with AI projects