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I am doing an internship at a big company wich create industrial automated systems for some big company's. They want me to design a way to monitor all the Java based control modules. Now I am going to use JMX, but I have thought of a couple of ways of doing that, and they all include opening some ports. I was wondering what kind of security risks might come out of that.

Thanks in advance

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What is your threat model? –  Matrix Sep 25 '13 at 13:56

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An open port is an attack surface that can be exploited. Reduce the number of open ports as much as possible. If a service isn't required to be accessed by the open internet, then don't expose it.

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