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My opinion
The biggest difference between Cable moderm and Dial up is that normailly dial up use DHCP to assign IP address for single user, so the IP address is dynamic, but the Cable use fix IP address. Most hacker attack do not occure in short time, the most important thing they do is monintor the traffic on the net, using sniffer etc. the objective is to lock down the target and then attack. So normally it need time to find the weak point of specail computer system. But the dynamic IP address make it not easy to follow, but fixed IP is much easier. So fixed IP is more dangerious than DHCP. Be careful.
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