Also like Firesheep, the hack can be defeated by an encrypted connection.

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So far, Lewman says, Tor's developers haven't figured out how that probe is able to determine what's an encrypted connection to a Tor server and what's a connection to an encrypted banking or e-commerce site, which in theory should both look to a snooping government like indecipherably scrambled Web traffic.

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In a blog post in January, Tor executive director Andrew Lewman wrote that one of the five Iranian ISPs is now blocking publicly-known Tor nodes, even when that connection is encrypted.

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Basically it's a USB security key that supposedly encrypts data stored to the thumb drive using AES, provides remote encrypted storage, creates a secure connection to the internet, and deletes your browser's cookies and history files.

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