Dark data is all the stored information companies keep but never use—think old...

https://instaquoteapp.com/how-do-you-run-a-deletion-workflow-without-getting-sued-later/

Dark data is all the stored information companies keep but never use—think old files, logs, or emails piling up unnoticed. Surprisingly, 60-80% of data goes untouched, costing businesses around $2.5 million each year in storage and management