Flash Cookies (Useful info if you did not know)

[toxin]

Wow something I just learned about flash has its cookie type that is NOT cleared when you clear your cookies or cache. I may have been a bit slow to finding this out so thought to share the knowledge with other. Firefox has you covered with this add-on https://addons.mozilla.org/en-US/firefox/addon/6623

You can also find the files in the Application Data directory of Adobe Flash directory name is #SharedObjects
something like this
X:\Documents and Settings\Saint\Application Data\Macromedia

This is used for ads and other things so read up on it as something are needed

[Nox]

I think flash cookies are not really known, at least I almost never hear about them, so you're probably not that slow
or maybe you are slow and I am slow

I'd add:

this cookies can have up to 100kB, no quantity limit - compare with 4kB max for common cookie

http://papers.ssrn.com/sol3/papers.cfm?abstract_id=1446862

Something to access them:
http://sourceforge.net/projects/soleditor/
http://solve.sourceforge.net/

http://synopsi.com/sol.zip for win (console application)
you have to locate them first: http://en.wikipedia.org/wiki/Local_Shared_Object

Other program that can handle them:
https://addons.mozilla.org/en-US/firefox/addon/6623 (BetterPrivacy FF addon)
http://www.ccleaner.com/
http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager07.html (Adobe's Flash manager)

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Flash is not the only one - SilverLight (while having also the common cookies) has a feature called Isolated Storage allowing to store up to 1MB of data (dunno if per application or per domain)


These two also bypass Privacy modes in browsers

http://www.ghostery.com/

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Source: http://blog.synopsi.com/2009-08-21/nie-su-cookies-ako-cookies [slovak]

it's a security and privacy related blog so what I wrote is a bit biased, but I think still useful

btw lol http://igigi.baywords.com/shoptet-cz-expose-passwords-in-plaintext/ that's sad... I guess our games are more secure than this eshop generator

[toxin]

Well this one may need its own spot but will post here. It is Google gears an add-on to that lets you know at least before it adds it.
This could have use in games. I think i seen a old post on here some time back about having the user store images and other things on the computer I will be looking in to it a bit more.
Gears is an open source project that enables more powerful web applications, by adding new features to your web browser:
Desktop    Let web applications interact naturally with your desktop
Database    Store data locally in a fully-searchable database
WorkerPool    Run JavaScript in the background to improve performance



http://gears.google.com/

[Harkins]

Flash LSOs are a great way to notice dupers.

[JGadrow]

Flash LSOs are a great way to notice dupers.

Agreed, though still not 100% perfect. I don't think it's possible to have 100% protection from multi-accounting. It's like computer security: You're never 100% safe, but if you throw enough at it, you can make it really difficult.

[Mufasa]

Flash LSOs are a great way to notice dupers.

which is why I love that it's not well-known. Almost everyone knows to clear cookies/cache (maybe even start a different browser) then change IP or use proxy. Almost no one thinks to clear flash cookies