Hackers and malicious insiders view cloud file sharing services like Box, Dropbox, OneDrive, and Google Drive, as potential treasure troves when it comes to data exfiltration. You need the ability to discover your sensitive data within them, what users have what rights to access what data, and ensure security best practices are in place. This paper examines seven items to consider when it comes to security and compliance of cloud file sharing services and how you can mitigate the risks with a Cloud Access Security Broker (CASB) solution.