Ernst & Young (EY) Exposes 4TB Database Online – What Went Wrong?

A mistake in the cloud has exposed a vast trove of data belonging to one of the world’s largest professional-services firms. According to multiple independent cyber-security researchers, a 4-terabyte SQL Server backup file belonging to Ernst & Young (EY) was publicly accessible on the internet via Microsoft Azure Storage.

While no hack appears to have been involved, the incident underscores how even elite organizations are vulnerable to basic mis-configurations in the era of rapid cloud deployment.