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HTML5 Draws Concern Over Risks To Privacy

Hugh Pickens writes "The NY Times reports that in the next few years, HTML5 will provide a powerful new suite of capabilities to Web developers that could give marketers and advertisers access to many more details about computer users' online activities. The new Web language and its additional features present more tracking opportunities because the technology uses a process in which large amounts of data can be collected and stored on the user's hard drive while online. Because of that process, advertisers and others could, experts say, see weeks or even months of personal data that could include a user's location, time zone, photographs, text from blogs, shopping cart contents, e-mails and a history of the Web pages visited. 'HTML5 opens Pandora's box of tracking in the Internet,' says Pam Dixon, the executive director of the World Privacy Forum. Meanwhile Ian Jacobs, head of communications at the World Wide Web consortium, says the development process for HTML5 will include a public review. 'There is accountability,' Jacobs says. 'This is not a secret cabal for global adoption of these core standards.'"

17 of 163 comments (clear)

  1. Browsers... by the_one_wesp · · Score: 5, Insightful

    Browsers are still going to be the ones in charge of that kind of storage, just like history, cookies and other current way's of tracking user information. It's just going to require users to CONTINUE being careful about their web usage. I don't see that anything is changing.

    1. Re:Browsers... by PopeRatzo · · Score: 4, Funny

      chmod -R a-w is your friend.

      Is he a rapper?

      Oh, it's something on the computer?

      Where is the icon for that app? It's not one of those things I have to type into the little black box with the white letters is it? I don't think my Windows 7 computer has one of those any more.

      --
      You are welcome on my lawn.
    2. Re:Browsers... by koreaman · · Score: 3, Insightful

      You are overly optimistic if you think Aunt Marge and Uncle Joe will have ever even seen or heard of "the little black box with the white letters" :)

  2. FUD by The+MAZZTer · · Score: 5, Informative

    Article reads like it was written by someone who has no idea about the time and effort taken to sandbox sites from each other. Sounds like he's talking about LocalStorage or client side DBs, which can hold more data but are no more privacy risks than a single unique ID stored in a cookie linked to an unlimited REMOTE database. Accessing web history is not a part of HTML5, more FUD there, and browser vendors are working to block JS from being able to access that information. They also seem to refer to geolocation, which in Chrome at least has to be explicitly granted to sites unless you turn it on globally.

    The "supercookie" thing is perhaps the one legitimate thing mentioned but browsers should (or probably will if they don't already) clear out most of those locations (except Flash, but you can't blame the browsers for that really) when you clear your private data, which at least Firefox and Chrome can do for you.

    As for "buckets to put tracking information into" why bother relying on "buckets" on the client which may or may not exist, are limited in size, may change or be emptied at any time, etc, when you can buy as many "buckets" as you want server-side and store virtually unlimited data about them?

    1. Re:FUD by TheRaven64 · · Score: 4, Informative

      The browser doesn't allow the plugin to write to the disk, the OS does. Plugins are just libraries - they can do anything that any binary can do. If you are using nspluginwrapper on *NIX, you can make plugins run in a chroot and clean up after them, but file accesses do not go via the browser and 'modern' operating systems do not provide any facilities for running subprocesses that validate system calls via the parent.

      --
      I am TheRaven on Soylent News
    2. Re:FUD by TheRaven64 · · Score: 3, Informative

      Bullshit. Seriously, bullshit. The browser provides the interface through which the plugin can work

      No it doesn't. It provides a set of interfaces that allow the plugin to interface with the browser, but as long as the plugin is native code it can issue system calls. If it can execute an interrupt instruction, it can do anything that any other application can do.

      There are only two possible ways of preventing this. One is to require plugins to be compiled by the browser using a language that does not allow 'unsafe' operations. At a minimum, such a language would need to be garbage collected (otherwise dangling pointers could be used escape) and no pointer arithmetic. Good luck getting plugin writers to rewrite their entire codebase in such a language.

      The other alternative is for the operating system to provide a mechanism for isolating the plugin. UNIX provides chroot(), but it requires root privileges, so you'd need a plugin launcher that was setuid root, which makes it very attractive target for exploits.

      Javascript is blocked from writing to disk, and indeed doing a lot of things in certain circumstances

      Entirely different. The limitations of JavaScript are inherent in the source language. There is no way for JavaScript code to issue interrupts or to make system calls. There is no way for it to call arbitrary C functions in the current address space. The browser's interpreter or compiler for JavaScript simply does not produce any code that can escape the sandbox (modulo bugs).

      the browser can certainly lay down a strict set of rules by which the plugins can and cannot work, and that certainly includes local file access.

      As you so eloquently put it; bullshit. The browser can make any rules that it wants, but it can't enforce them - that was my point. Unless it is intercepting any system calls that the plugin makes (most operating systems don't provide a convenient facility for doing this - you could do it via ptrace(), but the performance hit will be horrible), then it can't prevent a plugin from accessing the filesystem.

      Microsoft got shat on for this a long time ago about ActiveX

      Plugins are an entirely different issue. The problem with ActiveX was that it was downloading arbitrary untrusted code from the Internet and running it with normal app privileges. Plugins, in contrast, are supposed to be trusted code. Installing a plugin requires user action, just like installing an app. If you don't trust the plugin author, you can simply not run their plugin.

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      I am TheRaven on Soylent News
  3. Re:Don't cookies do the same thing? by chemicaldave · · Score: 3, Insightful

    I think the fear is that this will contain exponentially more data than do HTTP cookies.

  4. Re:Don't cookies do the same thing? by captainpanic · · Score: 4, Interesting

    So, the actual news is that although we get new technology, old problems still aren't fixed?

    The fact that with current technology all this data is already available doesn't mean that it does not need to be fixed in the future.

  5. Didn't the '90s teach us? by Darkness404 · · Score: 4, Insightful

    Didn't the 90s (And early 2000s) teach us anything? If HTML isn't implemented in essentially the same way across all browsers the Internet will stagnant again and we will turn to cross-platform plugins like Flash to actually get stuff done.

    --
    Taxation is legalized theft, no more, no less.
  6. the issue seems to hinge on one concept: by circletimessquare · · Score: 3, Interesting

    i don't have a problem with a website seeing everything i do on that website. i have a problem with a website seeing what i do on other websites

    let foo.com have evercookies on my computer about everything i do... at foo.com. not a problem. but i don't ever want foo.com too see what i do at fubar.com, and visa versa

    of course, foo.com can sell my info to fubar.com through different channels, but that's a problem that predates the internet, and has nothing to do with browser privacy. and i know if doubleclick has their ads on foo.com, they can infer certain things about my activities at foo.com... actually, now that i think about it, that's a fatal hole in any browser privacy: if a webpage is serving content from another website, such as with advertising networks, we're pretty much doomed no matter what the markup language, aren't we?

    to really have browser privacy, you'd have to destroy the entire possibility of webpages serving content from other domains. how the heck do you enforce that? a rule like "when loading content from foo.com, everything on this page must come from foo.com"? is that a viable concept? no more google analytics, no more iframes... i don't know, we're just doomed

    but... even if you had that rule, foo.com could just agree with double click to proxy their ads, running them through their servers, so everything is coming from one domain, even though it really isn't. then they can simply see how one particular ip address walks across the web where they have similar agreements with other sites. no escape. you'd have to spoof your ip with every request, which breaks all sorts of functionality on most websites. maybe you could have a new ip for every tab, every session... what a nightmare

    basically, the concept of privacy on the internet is void. if you type it on the web, it is known, end of discussion. crap

    --
    intellectual property law is philosophically incoherent. it is your moral duty to ignore it or sabotage it
  7. AdBlock! by Meneth · · Score: 5, Informative
    My favourite filter:

    *$third-party

    Blocks all kinds of crap. Speeds up browsing, too. Even on Slashdot it blocks Google Analytics and something from demandbase.com.

    Of course, you'll need lots of exception rules, but if you want to be aware of where your browser goes to get its files, it's well worth it.

  8. Re:Don't cookies do the same thing? by icebraining · · Score: 3, Interesting

    They are, if you care. Most browsers allow you to disallow cookies, storage, etc, or clean them up periodically.

    Most people don't care. No: most people want to be remembered by the sites for convenience, and they mostly definitively don't want to have to allow/disallow on a site by site basis.

    The problem isn't technological, it's sociological.

  9. Re:Don't cookies do the same thing? by captainpanic · · Score: 3, Interesting

    Genuine question - if people honestly don't care, then is it really a problem?

    Is it that they don't care, or don't understand?

    If people honestly don't understand the problem, then it's up to a government to protect the people, or up to the producer of a particular product to protect its customers (enforced by laws to protect the people).

    Privacy is an abstract concept, which is difficult to understand for most people. Privacy for most people still means "to be able to close the curtains at night", and has nothing to do with the internet or any other digital technology.

  10. Re:Don't cookies do the same thing? by John+Hasler · · Score: 5, Insightful

    > Being able to store things with flash is fine...

    No it isn't. Creatures such as Flash should never be able to store or read anything. They should be locked in their sandboxes with only the input the browser chooses to give them.

    --
    Warning: this article may contain humor, sarcasm, parody, and perhaps even irony. Read at your own risk.
  11. How, Specifically? by Doc+Ruby · · Score: 4, Interesting

    What features does HTML5 include that let one server access any data other than that created by that server, or by the client user through the HTML GUI sent by that server? Why should any client state be available to the server, except the same kind of client-side feature list of supported media types and browser version that we've had since HTML1.0?

    --

    --
    make install -not war

  12. Re:Don't cookies do the same thing? by AusIV · · Score: 3, Insightful

    What are you talking about? And who modded this insightful?

    We're not talking about a civil rights issue, we're talking about an option you can turn on or off in your browser. It's not a problem for most people, so they don't turn it off. It's there to be turned off if you like. We're not even talking about getting rid of that option, we're just discussing sane defaults.

    Can you give a decent explanation of how this relates to police brutality?

  13. Turning on privacy breaks the web by Animats · · Score: 3, Interesting

    More and more sites just don't work if you enable strong privacy controls. Some of this seems to be deliberate, and it's getting worse.

    • If you don't let YouTube store Flash data, the "Press ESC to exit full screen mode" message will not disappear.
    • If you block third party cookies, CBS TV video won't play.
    • If you block most cookies, many video sites will play the same ad over and over.
    • "511.org", a Government-run site for traffic information, goes into an infinite reload loop if you block Google Analytics.