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Matt Bernhard
Matt Bernhard
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Matt Bernhard

@umbernhard

Grad student @umich advised by @jhalderm. @censysio, @censoredplanet, and @voting_works contributor. Voting, security, and usability researcher.

mbernhard.com
Vrijeme pridruživanja: srpanj 2014.

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    Matt Bernhard‏ @umbernhard 10. sij
    • Prijavi Tweet

    Hi folks. As you may have heard, I have been fortunate enough to work with amazing people and put out a study about ballot-marking devices. You can read it here: https://mbernhard.com/papers/bmd-verifiability-sp20.pdf …

    13:49 - 10. sij 2020.
    • 14 proslijeđenih tweetova
    • 42 oznake „sviđa mi se”
    • Patrick Traynor Colin Oatley Georgia Election Integrity eli neiburger Packy 🖊📜🗳🧮👊 Ann Arbor District Library John Panzer Elizabeth Warren Peace reethika
    6 replies 14 proslijeđenih tweetova 42 korisnika označavaju da im se sviđa
      1. Novi razgovor
      2. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        I want to try to clarify a lot of the furor I've been seeing here and elsewhere, so I'm gonna take a minute to do that here. This thread comes in N parts:

        1 reply 0 proslijeđenih tweetova 1 korisnik označava da mu se sviđa
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      3. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        Part 1: Thanks. There are so many people to thank for helping put this work together. First and foremost, my advisor, @jhalderm for supporting my development as a researcher, for working through the study with me, and polishing the heck out of our final draft.

        1 reply 0 proslijeđenih tweetova 3 korisnika označavaju da im se sviđa
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      4. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        My other coauthors were also absolutely outstanding. @allismcdon, @henryjmeng, Jensen Hwa, @thenakulbajaj, and @KevinMChang all really stepped up.

        1 reply 0 proslijeđenih tweetova 2 korisnika označavaju da im se sviđa
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      5. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        We were right in the middle of this study when my mom died, and I would in no way have been able to get this done in the way we did without each of these wonderful people. Last year was easily the worst year of my life, but these folks helped me at least salvage some good.

        1 reply 0 proslijeđenih tweetova 3 korisnika označavaju da im se sviđa
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      6. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        I'd also like to thank the Ann Arbor District Library @aadl. @henryjmeng and I walked in expecting to be told that they didn't want their patrons bothered by a bunch of annoying CS researchers, and instead we were welcomed with open arms.

        1 reply 0 proslijeđenih tweetova 2 korisnika označavaju da im se sviđa
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      7. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        Seriously, @ulotrichous, Jackie Fleischer-Best, and everyone else @aadl went 👏 to 👏 bat 👏 for this study, using library resources to help us get recruitment. I can't express how freakin' awesome that is. Talk to your libraries, y'all.

        1 reply 2 proslijeđena tweeta 7 korisnika označava da im se sviđa
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      8. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        I'd also like to thank @MikeByrneHFHCI and Phil Kortum (who I'm now mortified to realize I forgot to thank in the paper's acknowledgements) for talking to me in the early phases of the study to help me get my head around it.

        0 proslijeđenih tweetova 1 korisnik označava da mu se sviđa
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      9. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        (Also shoutout to Phil and Claudia Acemyan for collaborating on an earlier work and teaching me how to pretend I know how to run user studies https://mbernhard.com/papers/https-usability.pdf …)

        1 reply 0 proslijeđenih tweetova 0 korisnika označava da im se sviđa
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      10. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        I also want to thank @mcranechilders, @benadida, @danwallach @philipbstark, @TypeMRT, @thejoshpit, @aleksessex, @JoeBeOne, @kskoglund, and many many others for listening to me incessantly talk about this study for months.

        0 proslijeđenih tweetova 7 korisnika označava da im se sviđa
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      11. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        I really hope I haven't neglected anyone, but if I have please yell at me.

        1 reply 0 proslijeđenih tweetova 0 korisnika označava da im se sviđa
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      12. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        Part 2: Old Man Yells At Cloud. I've been pretty shocked by the attention that this study has gotten.

        1 reply 0 proslijeđenih tweetova 0 korisnika označava da im se sviđa
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      13. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        I knew that we were studying a fairly contentious topic, and I knew that there would be much twittering about it, but I was really, really hoping that this would cool the discussion, not inflame it.

        1 reply 0 proslijeđenih tweetova 1 korisnik označava da mu se sviđa
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      14. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        To that end, I must take issue with the way the study has been characterized by @ericgeller at @politico and @Joseph_Marks_ at @washingtonpost in particular.

        0 proslijeđenih tweetova 3 korisnika označavaju da im se sviđa
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      15. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        That the study was given over to clickbait is not surprising to me, but I am disappointed in two otherwise excellent journalists. I am the lead author on the paper, and I was not contacted by either of them for comment.

        1 reply 0 proslijeđenih tweetova 6 korisnika označava da im se sviđa
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      16. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        Both stories brush aside what I think are _really_ significant findings of our paper: BMDs are insecure, but there may be ways to secure them. Both stories seemed designed to inflame tensions among researchers and activists. Both are missing crucial context.

        1 reply 0 proslijeđenih tweetova 7 korisnika označava da im se sviđa
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      17. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        This is bad science journalism. Alarmism like this has contributed to us ignoring scientists on climate change for decades and to mistrust medical professionals whose work contributes to an ongoing literature of understanding what makes us sick and what doesn't.

        1 reply 0 proslijeđenih tweetova 5 korisnika označava da im se sviđa
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      18. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        I'm not here for sour grapes (no press is bad press after all), I just want to call a spade a spade. If you're interested in what better coverage of this paper looks like, I was deeply impressed with the way @AJVicens wrote up our study (https://www.motherjones.com/politics/2020/01/ballot-marking-devices-election-security/ …)

        5 proslijeđenih tweetova 12 korisnika označava da im se sviđa
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      19. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        There is thoroughness, context, and engagement in the science.

        1 reply 0 proslijeđenih tweetova 1 korisnik označava da mu se sviđa
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      20. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        Part 3: Science. Science is an ongoing process. Our paper is one of many that help fill in the blanks on BMDs, both existing and work to come. Our study looked at one population in one place on particular model of voting machine.

        1 reply 0 proslijeđenih tweetova 1 korisnik označava da mu se sviđa
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      21. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        We found real evidence in our population that BMDs are not secure. Were I making a purchasing decision, I would not buy an all-BMD solution. But this is one study, and science takes many studies before we can make strong, generalizable claims.

        1 reply 1 proslijeđeni tweet 5 korisnika označava da im se sviđa
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      22. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        We also found that there may be paths forward to better secure BMDs. Emphasis on the "may". Again, this is one study. Replication matters.

        1 reply 0 proslijeđenih tweetova 2 korisnika označavaju da im se sviđa
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      23. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        I know I'm sounding kind of defeatist of my own work, but anyone who tells you they know anything for sure based on one scientific study is either suffering from confirmation bias or selling snake oil.

        1 reply 0 proslijeđenih tweetova 2 korisnika označavaju da im se sviđa
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      24. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        Part 4: Takeaways. Yes, science is an imperfect and ever-ongoing process. Yes, ours is one drop of water in an ocean of knowledge to be gained about ballot marking devices. But there are a few things I feel confident in saying after our study.

        0 proslijeđenih tweetova 1 korisnik označava da mu se sviđa
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      25. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        BMDs on their own do not appear secure enough to be used safely in an election context when they are the sole means of voting. This assertion is based on our work, but also prior and contemporaneous work by Selker et al., Acemyan et al., Green et al., and others.

        1 reply 6 proslijeđenih tweetova 8 korisnika označava da im se sviđa
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      26. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        However, an important caveat to this is that we don't really know what else is secure. Hand-marked paper seems to intuitively provide a verifiable paper trail. However, this has not been confirmed empirically.

        1 reply 0 proslijeđenih tweetova 1 korisnik označava da mu se sviđa
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      27. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        What happens if the printer drops a race or candidate off a random 10% of paper ballots? Do people notice? We don't know.

        1 reply 0 proslijeđenih tweetova 1 korisnik označava da mu se sviđa
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      28. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        So when you hear that BMDs are unverifiable, please understand that it does not mean that hand-marked paper *is* verifiable. It probably is, but we haven't established that.

        1 reply 0 proslijeđenih tweetova 5 korisnika označava da im se sviđa
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      29. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        Secondly, we found evidence that BMDs may not be as unverifiable as previously thought. Participants were three times as likely to catch changes in races at the top of the ticket in our _non-intervention_ experiments.

        1 reply 0 proslijeđenih tweetova 1 korisnik označava da mu se sviđa
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      30. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        This indicates that an adversary desiring to change a high profile race has a higher chance of being caught.

        1 reply 0 proslijeđenih tweetova 1 korisnik označava da mu se sviđa
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      31. Matt Bernhard‏ @umbernhard 10. sij
        • Prijavi Tweet

        We also found some fairly easy to implement strategies that had a dramatic impact on verification.

        1 reply 0 proslijeđenih tweetova 3 korisnika označavaju da im se sviđa
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      32. Još 12 drugih odgovora

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