quote:Which is to say is like posting up your SIN #, phone #, birthday, etc. Without a context -- ie. the cable network
Each cable modem, regardless of brand, is uniquely identified by its Cable Modem ID, or MAC address. Short for Media Access Control, this address is a part of the hardware on the modem, and is associated with a specific user account.
the modem is operating on, there's not much more you can do with it.
|reply to aefstoggaflm |
While the mac address could potentially be used to identify you (or whoever is paying the ISP bill), only the ISP would be able to relate that information. They would have to look it up in their database. In other words, only certain employees of the ISP would have access to that information.
Also, I'm not an expert on networking, but my understanding is that MAC addresses exist on layer 2. Most layer 3 devices such as routers replace the originating MAC address with its own. In other words, your modem's MAC address can't be "seen" beyond the small segment of the ISP's network that you're on.
You can think of it like having a street address with no idea what city it is in. Or a SIN number without a name. Pretty useless. Heck, to an outsider trying to track your actions over the internet, a MAC address is useless compared to an IP address, and even an IP address, especially a dynamic one, isn't that useful to begin with.
In conclusion, I would rate the privacy risk of disclosing a modem MAC address 1 out of 10 (very low).