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Abandoning the Dumb Federal Cookie Policy

by on August 11, 2009 · 10 comments

Today’s Washington Post has a story entitled U.S. Web-Tracking Plan Stirs Privacy Fears. It’s about the reversal of an ill-conceived policy adopted nine years ago to limit the use of cookies on federal Web sites.

In case you don’t already know this, a cookie is a short string of text that a server sends a browser when the browser accesses a Web page. Cookies allow servers to recognize returning users so they can serve up customized, relevant content, including tailored ads. Think of a cookie as an eyeball – who do you want to be able to see that you visited a Web site?

Your browser lets you control what happens with the cookies offered by the sites you visit. You can issue a blanket refusal of all cookies, you can accept all cookies, and you can decide which cookies to accept based on who is offering them. Here’s how:

  • Internet Explorer: Tools > Internet Options > “Privacy” tab > “Advanced” button: Select “Override automatic cookie handling” and choose among the options, then hit “OK,” and next “Apply.”

I recommend accepting first-party cookies – offered by the sites you visit – and blocking third-party cookies – offered by the content embedded in those sites, like ad networks. (I suspect Berin disagrees!) Or ask to be prompted about third-party cookies just to see how many there are on the sites you visit. If you want to block or allow specific sites, select the “Sites” button to do so. If you selected “Prompt” in cookie handling, your choices will populate the “Sites” list.

  • Firefox: Tools > Options > “Privacy” tab: In the “cookies” box, choose among the options, then hit “OK.”

I recommend checking “Accept cookies from sites” and leaving unchecked “Accept third party cookies.” Click the “Exceptions” button to give site-by-site instructions.

There are many other things you can do to protect your online privacy, of course. Because you can control cookies, a government regulation restricting cookies is needless nannying. It may marginally protect you from government tracking – they have plenty of other methods, both legitimate and illegitimate – but it won’t protect you from tracking by others, including entities who may share data with the government.

The answer to the cookie problem is personal responsibility. Did you skip over the instructions above? The nation’s cookie problem is your fault.

If society lacks awareness of cookies, Microsoft (Internet Explorer), the Mozilla Foundation (Firefox), and producers of other browsers (Apple/Safari, Google/Chrome) might consider building cookie education into new browser downloads and updates. Perhaps they should set privacy-protective defaults. That’s all up to the community of Internet users, publishers, and programmers to decide, using their influence in the marketplace. (I suspect Berin is against it!)

Artificially restricting cookies on federal Web sites needlessly hamstrings federal Web sites. When the policy was instituted it threatened to set a precedent for broader regulation of cookie use on the Web. Hopefully, the debate about whether to regulate cookies is over, but further ‘Net nannying is a constant offering of the federal government (and other elitists).

By moving away from the stultifying limitation on federal cookies, the federal government acknowledges that American grown-ups can and should look out for their own privacy.

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Ends, Means, and One Man’s War on Advertising

by on March 24, 2009 · 8 comments

Chris Soghoian has responded to my recent post lauding his Targeted Advertising Cookie Opt-Out (or “TACO” – documented and downloadable here). We’re agreed in the main on user empowerment. The interesting stuff is on the margin: He disagrees with me that blocking third party cookies as I do (and he does too) is a satisfactory approach to suppressing tracking by advertisers.

There are a couple of points worth making about the discussion.

The first has to do with our slightly differing objectives. Chris is deeply focused on advertisers and his dislike of being tracked by advertisers. Though it is not absolute, I have a preference against tracking by anyone other than sites that I know, like, and trust. I’m no more worried about advertisers than any entity that would track my surfing – and there are many.

Again, TLF readers, I ask you to try setting your browser to query you before setting cookies. It’s a real insight into the dozens of entities getting a look at you as you surf, including a bunch of social networks and news sites.

If “advertisers” are what you seek to harness, that seems like a group that can be captured through some kind of centralized control mechanism. (I don’t think it actually is.) But if your goal is privacy as against all comers, you don’t attempt to centrally plan or decide who is good and who is bad. Responsibility rests with the end user.

Let the goal be “advertisers,” though. And I ask: Those social networks and news aggregators – are they “advertisers”? If you’re going to require a subset of Web communicators to obey opt-out cookies, you have to be able to define that subset – a problem Chris doesn’t seem to have thought about yet.

Lots of different publishers, sites, and networks have data that is entirely fungible with the tracking data advertisers collect. What do you get if you push down on the “officially advertisers” part of the balloon? Workarounds.

But I’ve backed into the second point – the means to these ends. Chris soft-pedals how he would get at tracking, but as far as I can tell it’s a law that says “advertisers” have to obey opt-out cookies. Continue reading →

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Chris Soghoian’s Cool Opt-Out Plugin

by on March 19, 2009 · 31 comments

What a victory for privacy and personal responsibility is Chris Soghoian’s Targeted Advertising Cookie Opt-Out (or “TACO” – documented and downloadable here). It signals to the 27 ad networks with well-configured opt-out cookies that you don’t want them to track you.

It’s a technical solution that empowers (and places responsibility with) the user to exercise dominion over his or her personal information. No need for law and regulation. No need to go pleading to politicians and bureaucrats for help.

It’s also a little more efficient than my method of controlling tracking, which is to take a glance at cookies as Web sites ask to set them on my computer.

(The answer is usually “no,” but it’s very interesting to see who all wants to get a glance at me when I visit any site. It’s a lot more than just ad networks, btw. I have no idea why people think ad-network tracking is bad and tracking by others is a matter of indifference.)

Now, Chris and I always find something to disagree about, so for good measure I’ll note that I disagree with his goal of switching targeted advertising from opt-out to opt-in. Continue reading →

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Nuts & Bolts: Everything You Wanted To Know About Cookies But Were Afraid To Ask

by on January 27, 2009 · 16 comments

As a means of introducing myself to TLF readers, this is an article that I wrote for the PFF blog in September that has not been previously mentioned on the TLF. Most of my other PFF blog posts have been cross-posted by Adam Thierer or Berin Szoka, but I’ve taken ownership of those posts so they appear on my TLF author page.

This is the first in a series of articles that will focus directly on technology instead of technology policy. With an average age of 57, most members of Congress were at least 30 when the IBM PC was introduced in 1981. So it is not surprising that lawmakers have difficulty with cutting-edge technology. The goal of this series is to provide a solid technical foundation for the policy debates that new technologies often trigger. No prior knowledge of the technologies involved is assumed, but no insult to the reader’s intelligence is intended.

This article focuses on cookies–not the cookies you eat, but the cookies associated with browsing the World Wide Web. There has been public concern over the privacy implications of cookies since they were first developed. But to understand them , you must know a bit of history.

According to Tim Berners Lee, the creator of the World Wide Web, “[g]etting people to put data on the Web often was a question of getting them to change perspective, from thinking of the user’s access to it not as interaction with, say, an online library system, but as navigation th[r]ough a set of virtual pages in some abstract space. In this concept, users could bookmark any place and return to it, and could make links into any place from another document. This would give a feeling of persistence, of an ongoing existence, to each page.”[1. Tim Berners-Lee, Weaving The Web: The Original Design and Ultimate Destiny of the World Wide Web. p. 37. Harper Business (2000).] The Web has changed quite a bit since the early 1990s.

Today, websites are much more dynamic and interactive, with every page being customized for each user. Such customization could include automatically selecting the appropriate language for the user based on where they’re located, displaying only content that has been added since the last time the user visited the site, remembering a user who wants to stay logged into a site from a particular computer, or keeping track of items in a virtual shopping cart. These features are simply not possible without the ability for a website to distinguish one user from another and to remember a user as they navigate from one page to another. Today, in the Web 2.0 era, instead of Web pages having persistence (as Berners-Lee described), we have dynamic pages and “user-persistence.”

This paper describes the various methods websites can use to enable user-persistence and how this affects user privacy. But the first thing the reader must realize is that the Web was not initially designed to be interactive; indeed, as the quote above shows, the goal was the exact opposite. Yet interactivity is critical to many of the things we all take for granted about web content and services today.

Continue reading →

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