Dark data is the info stored but never used, costing businesses millions and...

https://www.fastbookmarks.win/dark-data-is-the-info-companies-collect-but-don-t-use-think-55-of-data-just

Dark data is the info stored but never used, costing businesses millions and cluttering systems. About 55% of data warehouses hold dark data, which can increase storage costs and create risks like compliance gaps