MongoDB, like mostly any other commercial database you might care to name, has these five security subsystems: Authentication, Authorization, Network Encryption, Data-at-rest Encryption, and Auditing.
In this webinar you'll first learn which threat each of the subsystems address.
Secondly which parts probably differ by convention to other databases you know.
Lastly some practical "where" and "how" on enabling them, as well as the different options/levels in each.