Dark data is the information your organization collects but never uses—often...

https://holdenlvxt779.theburnward.com/what-is-a-smart-data-migration-and-when-should-we-do-it

Dark data is the information your organization collects but never uses—often making up 55% of stored data. This unused data not only wastes money on storage and backup but also increases risk by providing potential entry points for ransomware attacks