Dark data is the inactive or unused info companies store but rarely access—up...

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

Dark data is the inactive or unused info companies store but rarely access—up to 80% of it. This hidden clutter wastes money, sometimes costing $2.5 million a year, and creates noise that confuses AI projects