Dark data is all the info your company stores but never uses—think emails, old...

https://www.inter-bookmarks.win/dark-data-is-the-inactive-or-unused-information-stored-across-your

Dark data is all the info your company stores but never uses—think emails, old files, or system logs. It makes up 60-80% of inactive data and costs businesses millions, sometimes $2.5 million a year, just to hold onto it