Dark data is the unstructured information companies collect but never use,...

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

Dark data is the unstructured information companies collect but never use, often making up 55% of all stored data. This unused data not only wastes storage and backup resources but also increases exposure to ransomware attacks and data breaches