W3C home > Mailing lists > Public > public-device-apis@w3.org > May 2010

Re: Sys Info network attributes

From: John Morris <jmorris@cdt.org>
Date: Thu, 20 May 2010 23:24:19 -0400
Message-Id: <F9B31160-83CD-43A9-8CD7-E8551178CDE7@cdt.org>
To: W3C Device APIs and Policy WG <public-device-apis@w3.org>
+1 on Thomas's request for specific, realistic use cases for revealing  
MAC addresses through the web browser.  I'd also be interested in any  
argument that revealing MAC addresses is "not really a threat" -- I  
think that such a capability would have very significant and  
problematic implications for privacy.


On May 20, 2010, at 5:28 PM, Thomas Roessler wrote:

> On 20 May 2010, at 14:23, Brian LeRoux wrote:
>> Some notes from the phonegap team for consideration:
>> - MAC addresses can be used to uniquely identify a network device
>> which we can/have/do use for some apps. I can give some specific use
>> cases here if neccessary. We feel this is useful in the spec and not
>> really a threat.
> I'd be interested in seeing the specific use cases. In particular:  
> *What* is it that you really want to uniquely identify?  The network  
> interface? The user?  The device?
>> - Also: MAC addresses can be spoofed!
> Yes, but that's not very likely to occur.
>> - IP Addresses only give a rough estimate of where a person is...and
>> if we don't include it can be easily retrieved with
>> http://whatismyipaddress.com anyhow. We should include in the spec.
> These may well be different addresses: The device might be behind a  
> NAT, a proxy of sorts, or may use an anonymization service.
Received on Friday, 21 May 2010 03:25:03 UTC

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