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

https://penelopessmartdigests.talesignal.com/posts/how-does-dark-data-build-up-after-backups-and-replication

Dark data is all the info your company collects but never uses—think emails, old files, or logs. It can make up 55% of your stored data, tying up space and costing you money