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RE: RE: Privacy alert: Verizon is now monitoring your mobile Web habits

From: Jules Polonetsky <julespol@futureofprivacy.org>
Date: Sat, 15 Oct 2011 19:52:56 -0400
To: "'Richard Barnes'" <richard.barnes@gmail.com>, "'Harlan Lieberman-Berg'" <hliebermanberg@chitika.com>
Cc: "'Steingruebl, Andy'" <asteingruebl@paypal-inc.com>, "'public-privacy \(W3C mailing list\)'" <public-privacy@w3.org>, "'Ashkan Soltani'" <ashkan.soltani@gmail.com>
Message-ID: <041301cc8b95$90393d00$b0abb700$@org>
http://www.ipc.on.ca/images/Resources/pbd-ip-geo.pdf

The above link to the paper which describes the process used by Verizon and
Bering Media also includes a good discussion of the identification risks of
relying on zip plus 4.

-----Original Message-----
From: public-privacy-request@w3.org [mailto:public-privacy-request@w3.org]
On Behalf Of Richard Barnes
Sent: Friday, October 14, 2011 6:27 PM
To: Harlan Lieberman-Berg
Cc: Steingruebl, Andy; public-privacy (W3C mailing list); Ashkan Soltani
Subject: Re: RE: Privacy alert: Verizon is now monitoring your mobile Web
habits

There's a whole lot of variation.  I used to live in an apartment
building where a ZIP+4 identified about half a floor, fewer than 10
households.
--Richard

On Thu, Oct 13, 2011 at 3:28 PM, Harlan Lieberman-Berg
<hliebermanberg@chitika.com> wrote:
> My understanding is that ZIP+4 isolates you to about a city block of
> houses, an apartment complex, or a business that is somehow high
> volume - except for P.O. boxes, where it isolates to a single box.
>
> --
> Harlan Lieberman-Berg
> Director of Operations
> Chitika, Inc.
>
> On Oct 13, 2011 3:08 PM, "Steingruebl, Andy"
> <asteingruebl@paypal-inc.com> wrote:
>>
>> Do you know off the top of your head how many people are uniquely
identifiable by just their zip+4?  Anyone?  I’m not asking in addition to
other data, just about zip+4 btw.
>>
>>
>>
>> --
>>
>> Andy Steingruebl
>>
>> Sr. Manager, Internet Standards and Governance
>>
>> PayPal Information Risk Management
>>
>> (408) 967-4650
>>
>>
>>
>> From: public-privacy-request@w3.org
[mailto:public-privacy-request@w3.org] On Behalf Of Ashkan Soltani
>> Sent: Thursday, October 13, 2011 11:21 AM
>> To: Richard Barnes
>> Cc: Perez, Aram; public-privacy (W3C mailing list)
>> Subject: Re: Privacy alert: Verizon is now monitoring your mobile Web
habits
>>
>>
>>
>> My understanding is that VZ is using subscriber's addresses in order to
tag http traffic with ZIP+4, which is then later shared with advertisers
(similar to
Feeva http://www.wired.com/epicenter/2010/06/coming-soon-web-ads-tailored-to
-your-zip-4/all/1 )

>>
>>
>
>
>
Received on Saturday, 15 October 2011 23:53:34 GMT

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