From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Emanuel Berg via Users list for the GNU Emacs text editor Newsgroups: gmane.emacs.help,gmane.emacs.w3m Subject: Browser Fingerprinting Date: Wed, 15 Apr 2020 07:44:04 +0200 Message-ID: <87lfmx8frv.fsf@ebih.ebihd> Reply-To: Emanuel Berg Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="92160"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) Cc: emacs-w3m@namazu.org To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:eGI6gsjKRESvNIHfB45q2HvKTiU= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Wed Apr 15 07:44:41 2020 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1jOaqn-000NrH-Dt for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 15 Apr 2020 07:44:41 +0200 Original-Received: from localhost ([::1]:43330 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jOaqm-0007dk-Gk for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 15 Apr 2020 01:44:40 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:33543) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jOaqO-0007dc-V8 for help-gnu-emacs@gnu.org; Wed, 15 Apr 2020 01:44:18 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jOaqN-00075x-TS for help-gnu-emacs@gnu.org; Wed, 15 Apr 2020 01:44:16 -0400 Original-Received: from ciao.gmane.io ([159.69.161.202]:43552) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jOaqN-00075V-NY for help-gnu-emacs@gnu.org; Wed, 15 Apr 2020 01:44:15 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1jOaqJ-000NOU-Sn for help-gnu-emacs@gnu.org; Wed, 15 Apr 2020 07:44:11 +0200 X-Injected-Via-Gmane: http://gmane.org/ Mail-Followup-To: help-gnu-emacs@gnu.org Original-Followup-To: gmane.emacs.help Mail-Copies-To: never X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 159.69.161.202 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:122823 gmane.emacs.w3m:10483 Archived-At: Here is an interesting article on so called "Browser Fingerprinting" [1]. This can be of some concern to people using uncommon browsers like Emacs-w3m. The way they do fingerprinting is with cookies, with JavaScript, and/or with HTML5 canvas (which uses JavaScript). Because Emacs-w3m doesn't support JavaScript, one should be safe from all that save for the cookies, but they can be be disabled with (setq w3m-use-cookies nil) Then there is also the User-Agent field in the HTTP request which browser supplies voluntarily. Because Emacs-w3m isn't the most common of browsers, this field can be used to identify YOU - possibly. Inhibit with (setq w3m-add-user-agent nil) Now, check out the progress on [2] :) (The language is still "en" - however I don't think anyone can be tracked using that data...) Of course, the IP is still there, because otherwise the server won't know where to send the requested HTML. I think it is much more likely that tracking will be done using that, than the browser fingerprint! But that's not a browser issue, people who look for that kind of anonymity will probably use VPN or Tor or be on some other *net altogether, besides the internet... Even if you feel you have nothing to hide, and you are not paranoid, it can be a good feeling not to give anything to these bozos anyway :) [1] https://pixelprivacy.com/resources/browser-fingerprinting/ [2] https://amiunique.org/fpNoJS -- underground experts united http://user.it.uu.se/~embe8573 https://dataswamp.org/~incal