This may need correction for I am not well
vested in this area.
Your cable carries many frequencies. This allows the many TV stations you receive and Internet connection. The frequencies are seperated by the TV tuner and modem.
The modems job is to seperate the Internet frequency and convert it from anolog to digital (0 & 1's). The TV turners cannot do this.
As Computers can only understand digital input
an attack cannot happen thur the TV frequencies.
I installed a ATI TV Wonder Pro card, and split my cable so I can be online and also watch TV without having to switch the coaxil cable each time I want to switch. I am running Windows XP, and use Sygate Firewall for online protection. I have now started to be concerned that there might be a way for someone to hack into the computer or introduce a virus etc, through the TV connection to the ATI TV Wonder Pro card, since it does not run through a firewall. Is there any need to be concerned?