![]() The Tor Project itself published an article about these attacks with some mitigations. Examples of those attacks are described in several research papers as well as their limitations. Such techniques could however hypothetically be used by an advanced and probably global adversary with access to your source network to determine some of your activity. The efficacy of those methods in a real open-world setting has not been demonstrated yet and would probably require tremendous resources computing power making it very unlikely that such techniques would be used by a local adversary in the near future. Some of those methods can do so with a 96% success rate in a closed-world setting. Here are some examples:Ĭorrelation Fingerprinting Attack: As illustrated (simplified) below, this attack will fingerprint your encrypted Tor traffic (like the websites you visited) based on the analysis of your encrypted traffic without decrypting it. ![]() Most of those techniques are Correlation attacks that will correlate your network traffic in one way or another to logs or datasets. Many advanced techniques have been developed and studied to de-anonymize encrypted Tor traffic over the years. ![]()
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