I believe this particular attack[0] has been fixed.<p>[0] <a href="https:&#x2F;&#x2F;blog.torproject.org&#x2F;blog&#x2F;tor-security-advisory-relay-early-traffic-confirmation-attack" rel="nofollow">https:&#x2F;&#x2F;blog.torproject.org&#x2F;blog&#x2F;tor-security-advisory-relay...</a>