Dark data is the untapped information sitting in your files and systems that no...

https://www.nav-bookmarks.win/dark-data-is-the-information-your-company-collects-but-doesn-t-use-often

Dark data is the untapped information sitting in your files and systems that no one uses — and it can cause real problems. Around 55% of stored data goes unused, which means you’re paying for storage and risking exposure without any benefit