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If you read the specifications of the DOCSIS protocol, (I read it in its entirety back when 2.0 was current), you will find that a fundamental principle on which it it is built is that the ISP has *full* control over the Customer Premises Equipment.
- The ISP controls what firmware is loaded.
- The ISP controls what configuration file is loaded.
- The ISP can reboot it if they want.
If this is not acceptable, then DOCSIS is not for you.
FWIW, "hacked" is a subjective word.
They can use the SNMP protocol to backdoor in to their gateway devices for the purposes of remote management.
Comcast took an outage for 2 hours. The phone prompts admitted this fact by going straight to a prompt telling when they expected it back up.
After it came backup, my modem had been reset back to the factory settings.
How can they do this remotely?
I thought it could only be done by the pinhole resest button.
This blows my entire security protocol knowing the modem can be hacked.