- From: Richard Barnes <richard.barnes@gmail.com>
- Date: Sat, 15 Oct 2011 23:22:53 -0400
- To: Jules Polonetsky <julespol@futureofprivacy.org>
- Cc: Harlan Lieberman-Berg <hliebermanberg@chitika.com>, "Steingruebl, Andy" <asteingruebl@paypal-inc.com>, "public-privacy (W3C mailing list)" <public-privacy@w3.org>, Ashkan Soltani <ashkan.soltani@gmail.com>
Cullen Jennings and I also contributed a whitepaper on the risks ofthis model (in the context of the similar Feeva solution) at anearlier W3C privacy workshop.<http://www.w3.org/2010/api-privacy-ws/papers/privacy-ws-35.pdf> On Sat, Oct 15, 2011 at 7:52 PM, Jules Polonetsky <julespol@futureofprivacy.org> wrote: > 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 Sunday, 16 October 2011 03:23:31 UTC