The only way to make sure your system is not hacked via the internet is to not connect it to the internet.

>Sorry I have to disagree. We installed a sonicwall, had everything turned off but we still got hacked. Lucky the sonicwall reported the hack almost immediately and everything was shutdown. Real question in my mind why! There is nothing that the client does (no credit cards, just manufacturing data) that was even worth the time.
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>Johnf