this post was submitted on 05 Nov 2024
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The first three octets of a MAC specify the manufacturer of a NIC chipset. That could come in handy for driver debugging.
Manufacturers and firmware versions of storage devices? You can make the argument; perhaps it would have helped figure out the SSD firmware bugs years ago.
But stuff like whether or not you have video capture card or your current system temperature stats? Nah.. that's getting into "identifiable information as toxic waste" territory.
Yeah, so take the vendor and device id and be done?
Why should they need my unique ID?
A MAC address isn't really unique. Each has six octets, of which three refer to the manufacturer. The other three octets have at most 16,777,216 possible values. That seems like a lot but it really isn't; a MAC is supposed to be unique on a LAN, not globally. Rollovers during manufacturing happen, and collisions are rare but happen once in a while.
Unique enough with the other hardware IDs
And still, absolutely no reason to go further then the first octets, to have the vendor and device
Or am I missing something?
And I'm currently a happy user of Manjaro since years. But this stuff really isn't what I want to have on my system ...
Just defining the threat model of hardware addressing, as it stands.
I don't agree with them sending more than the first half either.
All good, just wanted to clarify what I meant