Dark data is the info companies collect but never use—often 60-80% of all...

https://stateofseo.com/what-does-agentless-really-mean-for-storage-analytics-tools/

Dark data is the info companies collect but never use—often 60-80% of all stored data. It takes up space, slows systems, and can cost businesses $2.5 million a year in unnecessary storage and management