Lewman says he doubts China could successfully probe every encrypted connection from its hundreds of millions of Web users.

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

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As Nixon dug into his logs, he realized the data struck his servers only just before one of his researchers or students logged in to the network from China over 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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Using an encrypted reverse connection ensures that we are protected from the prying eyes of Intrusion Detection Systems and less likely to trip alarms.

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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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