Or so claims a lawsuit filed by privacy attorney Joseph Malley, one of three he's filed in the last two months against some of the biggest media heavyweights in the world -- Disney, ABC, NBC, MTV, and a host of others.
All use them employ Web ad companies like Quantcast, Specificmedia, and Clearspring to deliver Flash ads, and all of those ads store Flash cookies on your hard drive.
So what's wrong with that? For one thing, most people aren't aware Flash even stores cookies. These cookie files are ridiculously hard to find and manage: You can't get at them from your browser, and they're buried several layers deep inside your Application Data folder on Windows PCs. They can store up to 100K of data per cookie, or about 25 times what a browser cookie can store. And they can be used to recreate tracking cookies you've deleted.
In other words, if you've told an advertiser you don't want to be followed around the Web by deleting its tracking cookie, that advertiser can use Flash to 'respawn' that deleted cookie without telling you -- and continue to track you in secret. Thus Malley's lawsuits, which accuse all of those companies of breaking federal laws against computer intrusion and surveillance.
That respawning bit is why Flash cookies are also called "zombie" cookies. However, like real zombies, they can be stopped -- and you don't even have to cut off their heads (or use cricket bats and vinyl LPs, like in Shaun of the Dead ). You just need to use Adobe's Flash Player Settings Manager. (more)Click the Adobe link above and set your preferences on the Global Settings Panel. It is easy to do and very worthwhile.
