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Recently, online properties like Hulu, MSN and Flixster have been caught using a tougher version of the common cookie. These "supercookies" (aka "Flash cookies" and "zombie cookies") serve the same purpose as regular cookies by tracking user preferences and browsing histories. Unlike their popular cousins, however, this breed is difficult to detect and subsequently remove. These cookies secretly collect user data beyond the limitations of common industry practice, and thus raise serious privacy concerns.

The prevalence of free, open WiFi has made it rather easy for a WiFi eavesdropper to steal your identity cookie for the websites you visit while you're connected to that WiFi access point. This is something I talked about in Breaking the Web's Cookie Jar. It's difficult to fix without making major changes to the web's infrastructure

We present results of a 45-participant laboratory study investigating the usability of tools to limit online behavioral advertising (OBA).We tested nine tools, including tools that block access to advertising websites, tools that set cookies indicating a user's preference to opt out of OBA, and privacy tools that are built directly into web browsers.

A security researcher has discovered a means of hijacking sensitive information from cookies in Internet Explorer. The 'cookiejacking' technique could expose credentials from Facebook, Twitter, Gmaiil, or other online services, but Microsoft doesn't consider it a serious threat. So, is the sky falling, is the security researcher crying wolf, or is the real risk somewhere in between.

Your privacy. Your choice. Free tools to make it easier.