ISAC Cambodia (InfoSec)

Defcon 21 – Safety of Tor Network Look at Network Diversity, Relay Operators & Malicious Relays

Description: Rumor has it that the Tor network is a CIA honeypot, that all relays are malicious, and that only bad people use Tor to do bad things online. How much of this is true? How much can we say about the safety of the network?

The safety of the Tor network has been a much discussed topic ever since the onion routing network was deployed in September 2002. This talk aims to answer the following questions: (1) How much diversity does the network really have?, (2) Who runs the relays in the Tor network?, and (3) What is being done about malicious relays?

Runa A. Sandvik (@runasand) is a developer for the Tor Project. Her work for the Tor Project includes forensic analysis of the Tor Browser Bundle and QA testing of new releases, as well as project management, user support, frequent traveling, and training. Runa has worked for the Tor Project since 2009 and has given talks to a number of different audiences, including activists, law enforcement, and university students.

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Apsara Media Services (AMS)


Mr. OU Phannarith is one of the well-known cybersecurity experts in Cambodia and the region. He is the founder of the first leading information security website ( in Cambodia. He has been invited to present in global conferences, forums, and seminars and he was awarded in Information Security Leadership Achievements (ISLA) in 2016 by (ISC)2 and in December 2012 as one of the top 10 Chief Information Security Officers (CISO) in ASEAN by the International Data Group (IDG). Mr. OU has been the Professor specializing in Cybersecurity.

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