The US Cable ISPs make no attempt whatsoever to stop cable modem hacking. They could: * Fingerprint / forcibly upgrade your firmware * Restrict routing to

The US Cable ISPs make no attempt whatsoever to stop cable modem hacking. They could: * Fingerprint / forcibly upgrade your firmware * Restrict routing to unauthenticated modem MAC addresses * All they do is give you a walledgarden config * The subscriber MAC address database is global and lock-free * The only real authentication is locally in Layer 2 * so you can sniff-and-trade * Change the locations/names of their config files regularly * Stop shipping Motorola-based modems to customers Many European ISPs do a lot of this stuff, but piracy is still totally possible there, just more of a pain.