Dark data is the information your company collects but doesn’t use—often 55% or...

https://garrettwigp625.tearosediner.net/does-2-5-million-a-year-in-dark-data-waste-sound-realistic

Dark data is the information your company collects but doesn’t use—often 55% or more of stored data. This inactive data increases storage and backup costs and raises breach risks, including ransomware targets hidden in forgotten files