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Tor Traffic Correlation Vulnerability

The vulnerability of Tor to traffic correlation attacks, which can compromise user anonymity by linking entry and exit points.

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2 results
Jan 20, 2026

How do exit nodes and hidden service design affect anonymity when accessing Tor sites?

Exit (egress) nodes are the Tor network’s interface with the open internet and therefore can observe and manipulate traffic destined for clearnet services, while Tor “onion” or hidden services avoid t...

Jan 14, 2026

How does traffic correlation attack work against Tor and how feasible is it for state actors?

Traffic correlation (aka traffic confirmation) links a Tor user to their destination by matching timing and volume patterns observed at the network's entry and exit points, and remains one of the fund...