Dark data is the information companies collect but don’t use, like old files or...

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

Dark data is the information companies collect but don’t use, like old files or inactive emails. Around 60-80% of stored data sits idle, taking up space and costing businesses up to $2.5 million a year in unnecessary storage and management fees