From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1RqOtu-0007wU-JM for garchives@archives.gentoo.org; Thu, 26 Jan 2012 12:58:02 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id E3162E05EC; Thu, 26 Jan 2012 12:57:53 +0000 (UTC) Received: from mail-we0-f181.google.com (mail-we0-f181.google.com [74.125.82.181]) by pigeon.gentoo.org (Postfix) with ESMTP id AF7DDE07F9 for ; Thu, 26 Jan 2012 12:56:52 +0000 (UTC) Received: by werb10 with SMTP id b10so424570wer.40 for ; Thu, 26 Jan 2012 04:56:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=from:reply-to:to:subject:date:user-agent:references:in-reply-to :mime-version:content-type:content-transfer-encoding:message-id; bh=vg4t9xFR7yK6/J3H+z3sEnVle2uaOpfvHAS2PdCl3gI=; b=Of86wu5N8zPBYmHHQ5tZje9vjLnJ0wzrL6uUwR4LLNM3Z+9xCzEsStdaYvYvs17dJQ SEqE7LHM7wqLBtigQAJNgauV1mxsKdalOL1ZukihkhMSTwj7PyNC04w0QJza5KGuEikx b5384H78DvezHFGArvEmi+ki9ekNV0GPMNMjI= Received: by 10.216.138.14 with SMTP id z14mr868834wei.7.1327582611934; Thu, 26 Jan 2012 04:56:51 -0800 (PST) Received: from dell_xps.localnet (230.3.169.217.in-addr.arpa. [217.169.3.230]) by mx.google.com with ESMTPS id hc10sm5257034wib.8.2012.01.26.04.56.49 (version=TLSv1/SSLv3 cipher=OTHER); Thu, 26 Jan 2012 04:56:50 -0800 (PST) From: Mick To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Google privacy changes Date: Thu, 26 Jan 2012 12:56:49 +0000 User-Agent: KMail/1.13.7 (Linux/3.0.6-gentoo; KDE/4.7.4; x86_64; ; ) References: <4F20FDB1.1030100@gmail.com> <201201261007.53041.michaelkintzios@gmail.com> <20120126113314.28857d24@digimed.co.uk> In-Reply-To: <20120126113314.28857d24@digimed.co.uk> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart14434532.JfRmtoUAc9"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201201261257.00153.michaelkintzios@gmail.com> X-Archives-Salt: 0fb8a760-931e-4c3f-83b6-52362b3bf5cd X-Archives-Hash: 4392372ff0c9b7977d94b1b7b00b0a1c --nextPart14434532.JfRmtoUAc9 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable On Thursday 26 Jan 2012 11:33:14 Neil Bothwick wrote: > On Thu, 26 Jan 2012 10:07:51 +0000, Mick wrote: > > BTW, it seems to me that if you access youtube and at the same time > > search Google without being logged in to any of their portals, they > > will not be tracking your email for user profiling purposes. They may > > be logging IP addresses but it could be different users on the same IP > > address, so advertising results would not be relevant. >=20 > They can track a lot more than IP addresses, your browser can provide a > lot of information, not just user-agent but installed fonts, plugin > information and much more. There is enough to do a damn good job of > identifying you even when your IP address changes. It is certainly simple > to see if you are one user or two. Not necessarily without making some broad assumptions. For example two=20 different users could be using the same machine and OS and browser; or same= =20 user could be using same machine, but different browser; or different users= =20 using different machines with same OS & browser, etc. So extrapolating the user profile from browser headers is unreliable. Of=20 course Google may only be interested in getting right most of the time in=20 which case they may use such info - although I have not found any reference= s=20 that they actually do. =2D-=20 Regards, Mick --nextPart14434532.JfRmtoUAc9 Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.17 (GNU/Linux) iEYEABECAAYFAk8hTZwACgkQVTDTR3kpaLYW1ACgweaQVHoDWOxnJ8pg/saE2Q1D aCkAnRxowNmx4PtPaUt9W6X1IuX/A88T =yMV3 -----END PGP SIGNATURE----- --nextPart14434532.JfRmtoUAc9--