Dark data refers to the inactive or unused data that companies keep but don’t...

https://messiahssplendidjournals.lowescouponn.com/how-do-i-query-object-store-metadata-in-databricks

Dark data refers to the inactive or unused data that companies keep but don’t analyze—often around 60-80% of stored data. This not only wastes storage and backup resources but also increases risks like ransomware attacks