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Lawsuit Hits Companies Using 'Zombie' Flash Cookies

Posted by kdawson on from the brains-for-a-filling dept.

A privacy activist has filed a lawsuit targeting eight corporate users of Quantcast's "zombie" Flash cookies, in addition to Quantcast itself. The suit alleges that MTV, ESPN, MySpace, Hulu, ABC, Scribd, and others used Quancast's Flash-based cookies to recreate browser tracking cookies that users had taken the trouble to delete. "At issue is technology from Quantcast, also targeted in the lawsuit. Quantcast created Flash cookies that track users across the web, and used them to re-create traditional browser cookies that users deleted from their computers. These 'zombie' cookies came to light last year, after researchers at UC Berkeley documented deleted browser cookies returning to life. Quantcast quickly fixed the issue, calling it an unintended consequence of trying to measure web traffic accurately. ... The lawsuit (PDF)... asks the court to find that the practice violated eavesdropping and hacking laws, and that the practice of secretly tracking users also violated state and federal fair trade laws. The lawsuit alleges a 'pattern of covert online surveillance' and seeks status as a class action lawsuit."

4 of 140 comments (clear)

  1. BetterPrivacy plug-in by sphealey · · Score: 4, Informative

    At least for the Flash cookies on Wintel, the BetterPrivacy plug-in seems to be doing a good job of deleting them for me.

    sPh

    1. Re:BetterPrivacy plug-in by mlts · · Score: 4, Informative

      +1 on BetterPrivacy. Install that as an add-on, and it works on Windows and OS X. No more worries about Flash shared objects because it can be set to zap them at very short time intervals, as well as when you open or close the browser.

      Firefox + BetterPrivacy + AdBlock + NoScript probably do as much for keeping a Windows machine clear of malicious software as most AV programs.

  2. Here is the shitty site by psyclone · · Score: 5, Informative

    http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager07.html

    Noscript users must temporarily allow adobe.com as well. (But at least you don't need to allow real cookies for either domain.)

    You can set the flash plugin to not store any data, but it sure gets annoying on some sites when the volume controls don't work. You can also set it to ask, but it's even more annoying to try and hit the "cancel" button 15 times with choppy video behind it.

  3. Re:Not Quantcast's fault by Anonymous Coward · · Score: 4, Informative

    Don't blame Quantcast. They're using the technology as Macromedia intended

    You logic is flawed. If I kill a human with a Samurai sword, would you blame the maker of the sword?

    Flash comes with every version of Windows since at least XP

    Do you mean Dell computers with Windows? Maybe, but no version of Windows ever came with Flash.