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dguido's profile
Dan Guido
Dan Guido
Dan Guido
@dguido

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Dan Guido

@dguido

CEO @trailofbits, organizer @EmpireHacking, director @hack_secure. Open DMs.

Brooklyn, NY
trailofbits.com
Joined April 2008

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    Two-way (sending and receiving) short codes:

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    1. Dan Guido‏ @dguido 14 Dec 2015

      It's irresponsible for Twitter to notify people they're being targeted then recommend the EFF and Tor as remedies.pic.twitter.com/sDwdd9YDVX

      5 replies 6 retweets 5 likes
    2. March  🧐‏ @_ta0 14 Dec 2015
      Replying to @dguido

      @dguido how so?

      1 reply 0 retweets 0 likes
    3. Dan Guido‏ @dguido 14 Dec 2015
      Replying to @_ta0

      @_ta0 EFF is staffed by lawyers, and their technical competency lately has varied from misinformed to malicious.

      1 reply 2 retweets 1 like
    4. Dan Guido‏ @dguido 14 Dec 2015
      Replying to @dguido

      @_ta0 Advocating Tor as a protection against state-sponsored attacks misunderstands how they operate and is practically negligent IMHO.

      2 replies 3 retweets 3 likes
    5. March  🧐‏ @_ta0 14 Dec 2015
      Replying to @dguido

      @dguido tor can defeat state-sponsored attackers, though, simply because it requires crazy resources to beat

      1 reply 1 retweet 0 likes
    6. Dan Guido‏ @dguido 14 Dec 2015
      Replying to @_ta0

      @_ta0 Does it?

      4 replies 1 retweet 0 likes
    7. March  🧐‏ @_ta0 14 Dec 2015
      Replying to @dguido

      @dguido or incredibly difficult to pull off

      1 reply 1 retweet 0 likes
    8. Dan Guido‏ @dguido 14 Dec 2015
      Replying to @_ta0

      @_ta0 History has proven that to be a false statement.

      3 replies 1 retweet 0 likes
    9. March  🧐‏ @_ta0 14 Dec 2015
      Replying to @dguido

      @dguido i respect you immensely but please point to an example of an actual practical attack against tor that deanonymized anyone

      1 reply 1 retweet 0 likes
      Dan Guido‏ @dguido 14 Dec 2015
      Replying to @_ta0

      @_ta0 https://blog.torproject.org/blog/tor-security-advisory-relay-early-traffic-confirmation-attack … https://community.fireeye.com/people/archit.mehta/blog/2014/11/18/onionduke-apt-malware-distributed-via-malicious-tor-exit-node …

      2:43 PM - 14 Dec 2015
      • 1 Retweet
      • 🎃👻THE CRYPTONOMICON👻🎃
      4 replies 1 retweet 0 likes
        1. New conversation
        2. March  🧐‏ @_ta0 14 Dec 2015
          Replying to @dguido

          @dguido the latter, yeah, that was serious, but the tor project addressed it quickly and efficiently

          1 reply 1 retweet 0 likes
        3. Dan Guido‏ @dguido 14 Dec 2015
          Replying to @_ta0

          @_ta0 Tor has a history of practical anonymity failures, from malicious exit nodes to architectural vulns and more http://www.ieee-security.org/TC/SP2013/papers/4977a080.pdf …

          4 replies 2 retweets 2 likes
        4. Dan Guido‏ @dguido 14 Dec 2015
          Replying to @dguido

          @_ta0 Tor has uses but it is over-prescribed as a solution and carry unknown risk for users not intimately familiar with it.

          3 replies 0 retweets 2 likes
        5. March  🧐‏ @_ta0 14 Dec 2015
          Replying to @dguido

          @dguido VPNs aren't reliable because, well, they're generally companies

          1 reply 0 retweets 0 likes
        6. Dan Guido‏ @dguido 14 Dec 2015
          Replying to @_ta0

          @_ta0 I would really like Streisand if they cut Tor out of it (you're probably seeing a trend here haha)https://github.com/jlund/streisand 

          2 replies 0 retweets 0 likes
        7. March  🧐‏ @_ta0 14 Dec 2015
          Replying to @dguido

          @dguido adding more layers does not make for better crypto

          1 reply 0 retweets 1 like
        8. Dan Guido‏ @dguido 14 Dec 2015
          Replying to @_ta0

          @_ta0 Oh I know, but as a concept I like it. I would just use L2TP if it were me.

          1 reply 0 retweets 1 like
        9. March  🧐‏ @_ta0 14 Dec 2015
          Replying to @dguido

          @dguido i personally am a big fan of i2p; i think it really addresses a lot of tor's problems, albeit there are a few new ones...

          0 replies 0 retweets 0 likes
        10. End of conversation
        1. New conversation
        2. March  🧐‏ @_ta0 14 Dec 2015
          Replying to @dguido

          @dguido the latter i've seen for a while; there are multiple relays that attempt to compromize your SSH. HSTS should stop that

          1 reply 1 retweet 0 likes
        3. Dan Guido‏ @dguido 14 Dec 2015
          Replying to @_ta0

          @_ta0 Using Tor opens you to a massive quantity of risk that normal users have little understanding of + does not address the original alert

          2 replies 1 retweet 1 like
        4. March  🧐‏ @_ta0 14 Dec 2015
          Replying to @dguido

          @dguido but it addresses at least one symptom

          1 reply 0 retweets 0 likes
        5. March  🧐‏ @_ta0 14 Dec 2015
          Replying to @_ta0

          @dguido ideally we'd recommend hardened gentoo + tor but it's not an ideal world and a lot of these people are non-technical non-profits

          0 replies 0 retweets 1 like
        6. End of conversation
        1. March  🧐‏ @_ta0 14 Dec 2015
          Replying to @dguido

          @dguido assuming we're talking HTTPS and assuming there aren't huge flaws in the implementation (i know lol)

          0 replies 0 retweets 0 likes
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