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Re: Disavowing Legal Liability

From: Lorrie Cranor <lorrie@research.att.com>
Date: Thu, 20 Sep 2001 10:21:12 -0400
Message-ID: <00e801c141df$8049d7c0$9816cf87@barbaloot>
To: "Ben Wright" <Ben_Wright@compuserve.com>, <www-p3p-policy@w3.org>
The P3P specification makes it quite clear
that compact policies cannot be used in cases where
mandatory extensions have been added to P3P. An extension
that essentially nullifies a P3P statement, is clearly mandatory.
In addition, several months ago we added to section 4.2 the
sentence "If an unrecognized token appears in a compact policy,
the compact policy has the same semantics as if that token was
not present."

----- Original Message -----
From: "Ben Wright" <Ben_Wright@compuserve.com>
To: <www-p3p-policy@w3.org>
Sent: Wednesday, September 19, 2001 10:39 AM
Subject: Re: Disavowing Legal Liability


> Regarding legal liability under P3P, I have posted a web site to air my
views at
> http://www.disavowp3p.com
>
> I fear that the P3P protocol is too dangerous and incomplete for any
corporation or
> institution to use in a legally meaningful way.  My web site offers ideas
on how
> web administrators can use "dummy" P3P tokens to trigger the intended
function of
> cookies under IE 6, while disavowing any legal or moral signficance to the
tokens.
>
> Comments welcome.
>
> --Ben
>
> Benjamin Wright
> Attorney and Founding Author,
>    The  Law of Electronic Commerce
> Dallas, Texas
> tel 214-403-6642
> ben_wright@compuserve.com
> http://www.disavowp3p.com
>
> -------------Forwarded Message-----------------
>
> >From: INTERNET:www-p3p-policy@w3.org, INTERNET:www-p3p-policy@w3.org
> >To: [unknown], INTERNET:www-p3p-policy@w3.org
> > "Ben Wright", Ben_Wright
> >
> >Date: 8/30/01 10:20 AM
> >
> >RE: Re: Disavowing Legal Liability
> >
> >
> >By default IE6 does not block all cookies that do not have compact
> >policies. Only third party cookies are blocked. See
> >http://support.microsoft.com/support/kb/articles/Q283/1/85.ASP
> >for more information.
> >
> >Regards,
> >
> >Lorrie Cranor
> >
> >
> >----- Original Message -----
> >From: "Ben Wright" <Ben_Wright@compuserve.com>
> >To: <www-p3p-policy@w3.org>
> >Sent: Thursday, August 30, 2001 10:56 AM
> >Subject: Re: Disavowing Legal Liability
> >
> >
> > My thanks to Lorrie Cranor for the comment below to the effect that the
> > definining of a new token would be a mandatory extension, and that the
> > Specification forbids full policies with mandatory extensions to be
> > expressed as compact policies.
> >
> > Please help me understand.  It appears that the P3P rules (as
implemented
> by
> > Internet Explorer 6) are a trap for web adminstrators.
> >
> > A mandatory extenstion, as I understand it, is a way to define a new
term.
> > If an honest web administrator feels she needs to use a mandatory
> extension
> > in order to express an honest and accurate privacy policy, then under
the
> > rules she is forbidden from representing that policy in compact form.
And
> > if she cannot make a compact policy, then IE 6 will block her cookies.
> >
> > Is my understanding correct?  If it is, then the adminstrator is
trapped,
> is
> > she not?  If she wants to save her cookies, it seems she is forced to
> > publish an inaccurate privacy policy.
> >
> > Is there any way for her to get out of the trap?
> >
> > Thank you
> >
> > --Ben Wright
> > http://ourworld.compuserve.com/homepages/Ben_Wright
> >
> > >Message-ID: <010501c12c35$3a6263e0$3a06cf87@research.att.com>
> > >From: "Lorrie Cranor" <lorrie@research.att.com>
> > >To: "Ben Wright" <Ben_Wright@compuserve.com>, "P3P Policy"
> > <www-p3p-policy@w3.org>
> > >Date: Thu, 23 Aug 2001 20:39:25 -0400
> > >Subject: Re: Disavowing Legal Liability
> > >
> > >Section 4.5 of the specification says that full policies that
> > >include mandatory extensions must not be represented
> > >as compact policies. The DSA token you describe sounds
> > >like it would be a mandatory extension. Thus what you
> > >describe is a violation of the P3P specification.
> > >
> > >Regards,
> > >
> > >Lorrie Cranor
> > >P3P Specification Working Group Chair
> > >
> > >
> > >----- Original Message -----
> > >From: "Ben Wright" <Ben_Wright@compuserve.com>
> > >To: "P3P Policy" <www-p3p-policy@w3.org>
> > >Sent: Thursday, August 23, 2001 3:45 PM
> > >Subject: Disavowing Legal Liability
> > >
> > >
> > > P3P Policy List:
> > >
> > > I am a lawyer studying Internet Explorer 6's implementation of P3P.
> > >
> > > Web administrators will be reacting to IE 6's P3P implementation as
the
> > > browser is rolled out to the market.  I am concerned that
administrators
> > > will expose themselves to unwarranted legal liability through the
> > > statements they try to make in compact P3P policies.  I'm looking for
a
> > way
> > > to disclaim liability in compact policies.
> > >
> > > I'm thinking about suggesting that web administrators add the token
> "DSA"
> > > at the end of their compact policies.  DSA is not defined in the P3P
> > > specification, but it would be defined in full P3P policies and
> elsewhere
> > > as meaning that the web administrator disavows any legal liability
> > > associated with the compact policy.
> > >
> > > I see in the update for P3P specification section 4.2 that "If an
> > > unrecognized token appears in a compact policy, the compact policy has
> the
> > > same semantics as if that token was not present."
> > > http://www.w3.org/P3P/updates.html
> > >
> > > My question:  Suppose a user agent like IE 6 sees, with respect to a
> > > certain cookie, a compact policy that ends with the token "DSA". For
> > > purposes of the user agent's decision on how to handle the cookie,
will
> > the
> > > agent simply ignore the DSA token and treat the cookie as it otherwise
> > > would in the absence of the token?  It seems to me that the answer
> should
> > > be yes, but I'm not technically savvy enough to know for sure.
> > >
> > > Is anyone aware of someone doing something like this?
> > >
> > > I would be happy to hear other thoughts anyone wishes to share about
> this
> > > idea.
> > >
> > > --Ben Wright
> > > ben_wright@compuserve.com
> > > tel 214-403-6642
> > > http://ourworld.compuserve.com/homepages/Ben_Wright
> >
> >
>
>
Received on Thursday, 20 September 2001 10:29:00 GMT

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