There are deeply embedded things that go beyond JS.
If you work with ethernet adapters, you are likely to see “Compliant with DoD protocol X.YY” or something similar.
Also, most people don’t know that the internet itself is a subset of a larger network. Certainly not larger in terms of size, but larger in terms of authority.
The Internet is a subnet of something bigger. Maybe it’s still Darpanet, but whatever it is, it’s not hidden or anonymous at all.
Think about it. Just like Internet chat. That’s peer-to-peer communication between someone? (Who????) and the actual mac address on your machine.
How many folks change their network hardware every time they log on?
It’s as unique as a phone number.
Exactly. And it's supposed to be a unique hard-coded ID. Except that it can be edited in many cheapo soho routers and nic chips.
Look, there's big black-ops big-brother security issues (of which I'm not likely of interest, and I'm not likely to be able to counter) and there's legit commercial scamming and bungling where an online bank gets hacked or such (where I am a target, but am reasonably protected by a legitimate commercial entity) and then there's deserved scamming and bungling (Where I can avoid being a target by simply not surfing promiscuous sites like facebook or porn etc).
I'm not worried about the CIA, and can't do anything about it anyhow.
I'm -less- worried about banks (or even ebay) and legit institutions.
I lump facebook and twitter and porn into the third, "just don't go there" category.