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Index/Topics/AS-Aware Tor Clients

AS-Aware Tor Clients

The development and evaluation of AS-aware Tor clients and routing heuristics to reduce deanonymization risks, including the Astoria work and TOAR proposals.

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Feb 2, 2026

What operational security mistakes most commonly lead to deanonymization of Tor users and hidden‑service operators?

Most deanonymization of users and stems from a mix of protocol or implementation-level weaknesses exploited by attackers, network-layer manipulations of relays and guards, and human operational-securi...

Jan 15, 2026

What empirical measurements exist quantifying deanonymization success rates against modern Tor clients under different AS‑level adversaries?

Empirical work over the past decade has not produced a single, universal "success rate" for deanonymization of modern Tor clients by AS‑level adversaries; instead, measurement studies report the fract...