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Degrading Tor Network Performance Only Costs a Few Thousand Dollars Per Month

Published by Slashdot on Mon, 19 Aug 2019


Threat actors or nation-states looking into degrading the performance of the Tor anonymity network can do it on the cheap, for only a few thousands US dollars per month, new academic research has revealed. An anonymous reader writes: According to researchers from Georgetown University and the US Naval Research Laboratory, threat actors can use tools as banal as public DDoS stressers (booters) to slow down Tor network download speeds or hinder access to Tor's censorship circumvention capabilities. Academics said that while an attack against the entire Tor network would require immense DDoS resources (512.73 Gbit/s) and would cost around $7.2 million per month, there are far simpler and more targeted means for degrading Tor performance for all users. In research presented this week at the USENIX security conference, the research team showed the feasibility and effects of three types of carefully targeted "bandwidth DoS [denial of service] attacks" that can wreak havoc on Tor and its users. Researchers argue that while these attacks don't shut down or clog the Tor network entirely, they can be used to dissuade or drive users away from Tor due to prolongued poor performance, which can be an effective strategy in the long run.Read more of this story at Slashdot.
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