https://motherboard.vice.com/read/the-uk-is-using-bulk-interception-to-catch... https://conspicuouschatter.wordpress.com/2016/02/03/a-technical-reading-of-t... https://www.documentcloud.org/documents/2702948-Problem-Book-Redacted.html Researchers have speculated that GCHQ may have the capability to deanonymise Tor users by examining the timing of connections going in and out of the Tor network. ... there is clear evidence that timing information is both recognized as being key to correlating events and streams; and it is being recorded and stored at an increasing granularity. There is no smoking gun as of 2011 to say they casually de-anonymize Tor circuits, but the writing is on the wall for the onion routing system. GCHQ at 2011 had all ingredients needed to trace Tor circuits. It would take extra-ordinary incompetence to not have refined their traffic analysis techniques in the past 5 years. The Tor project should do well to not underestimate GCHQ’s capabilities to this point. ... one should wonder why we have been waiting for 3 years until such clear documents are finally being published from the Snowden revelations. If those had been the first published, instead of the obscure, misleading and very non-informative slides, it would have saved a lot of time — and may even have engaged the public a bit more than bad powerpoint. http://motherboard.vice.com/read/the-uk-will-police-the-dark-web-with-a-new-... https://blog.torproject.org/blog/traffic-correlation-using-netflows Prediction market (place your bids): "First networks utilizing fill traffic as TA countermeasure to emerge and reach early deployment by year end 2017..."