Help Net Security reports:
A group of students from Saarland University’s Center for IT-Security, Privacy and Accountability (CISPA) have discovered tens of thousands MongoDB databases accessible to remote attackers, including a couple belonging to big companies and containing personal and financial information of millions of their users.
MongoDB is a popular cross-platform, document-oriented NoSQL database, and is used by many major websites and services, including Craigslist, eBay, SourceForge, Viacom, and many others.
Read more on Help Net Security.