MongoDB is not secure by default. If you are installing MongoDB and launching it without configuring it for authentication, you are going to have a bad time. People can read, write, destroy, or alter data on your server without ever needing to login or authenticate in anyway. Securing the database is not hard to do and can be done in a few steps. First, start up your Mongo client. On Linux it is the command `mongo`. Enter this block of text in, of course changing the placeholder parts to your......