In the OCJD assignment we often use RMI. While the program communicates with the server through the Internet are there any security threats concern with this. Are we required to implement such security code in our assignment. This is because I don't have any knowledge on security.
If your question is related to the OCMJD you are not allowed to use a security manager at all. So I have no idea why you need security (unless it's not with regard to the OCMJD and then you'll be better off with posting this question in a more appropriate forum).