Dark data is the info companies collect but don’t use—up to 55% of all data....

https://telegra.ph/What-Is-the-Difference-Between-Metadata-and-Content-Scanning-10-12

Dark data is the info companies collect but don’t use—up to 55% of all data. This unused data still costs money to store and can create risks like security gaps. It also clutters AI projects, adding around 70% noise that makes results less accurate