Dark data is the stuff companies store but rarely use—think old emails, logs,...

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

Dark data is the stuff companies store but rarely use—think old emails, logs, and unused files. It makes up about 60 to 80% of stored data but sits inactive, taking up space and costing money. For example, businesses can waste up to $2