Brad Reaves

@bradreaves

Burrito Enthusiast and Assistant Professor of Computer Science at North Carolina State University. All tweets my own.

Raleigh, NC
Vrijeme pridruživanja: kolovoz 2009.

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  1. prije 11 sati

    The lesson? Phone networks remain critical infrastructure essential to our civic life, and we need to develop better defenses. /end

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  2. prije 11 sati

    This low-effort "attack" made an already bad situation much worse. Outlets are reporting that some precinct chairs gave up trying to call that evening, waiting till the morning to submit their results. The resulting information vacuum has enabled speculation and disinformation.

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  3. prije 11 sati

    News outlets are reporting today that one of the phone numbers used for tallying results from the precincts was leaked on 4chan, and trolls spent their evening jamming the lines.

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  4. prije 11 sati

    The phone network is far from perfect, with lots of vulnerabilities. One of them is that it has virtually no defenses against denial of service attacks. Which leads us back to Iowa...

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  5. prije 11 sati

    When the app stopped working, results could still be tallied -- because they had the phone lines as a backup. This wasn't as fast, or as easy, but at least it worked.

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  6. prije 11 sati

    One of the reasons I care so much about telephone network security is because this is the network we rely on when practically all other means fail. The a great case study for this. (thread)

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  7. proslijedio/la je Tweet
    5. velj

    The "Summary of the NCSC’s security analysis for the UK telecoms sector" is quite an interesting read. Some nuggets in thread below... 1/7

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  8. proslijedio/la je Tweet
    4. velj

    WiSec'20 is now accepting submission of research papers on Wireless Security and Privacy! Paper submission deadline: February 28, 2020 CfP:

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  9. proslijedio/la je Tweet

    He was in fact the first African American to earn a PhD in *any* subject from an American university, one of the first ten people of any race to earn a PhD in physics from an American university, and one of the first Americans to earn a PhD in any subject in the US.

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  10. proslijedio/la je Tweet
    29. sij

    📢 PhD students: FTC's Office of Technology Research and Investigation (OTech) will host technical research internships this summer. Apply by February 10!

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  11. proslijedio/la je Tweet

    As part of the funding I receive for grad school, a short video will be produced about the Native scholars in the program. Unfortunately, one of the questions is "How will your work benefit your community?"

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  12. proslijedio/la je Tweet
    29. sij

    On review, the information is consistent with PC members inappropriately sharing conference data, rather than a hack.

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  13. 29. sij

    Finally, these issues should be a priority for security researchers and policymakers. The phone network can reach nearly every human on Earth in a matter of seconds with only a few failures each day. It's a massive accomplishment -- and robocalls are making it darn near useless.

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  14. 29. sij

    Longer term, we need better ways to authenticate calls so that spoofing no longer works. STIR/SHAKEN are a step in the right direction, but I fear that it won't be effective for the millions of phone lines that are not VoIP. We've developed techniques that can help.

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  15. 29. sij

    We need better threat intelligence and investigative tools. This investigation was very much a manual process. Regulators have told me that prosecuting scammers at scale is hard because of the sheer number of calls and data they have to sort through. My group is working on this.

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  16. 29. sij

    First, going after negligent carriers may make it harder for scammers to operate. Props to the investigators and attorneys for their work on this case!

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  17. 29. sij

    So what have we learned, and what's the long term solution? A few thoughts:

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  18. 29. sij

    The scammers will come back, though. The government alleges the defendants made millions off of these frauds (and they were just an intermediary). Telephone scams are lucrative, have a low barrier to entry, and are hard to prosecute.

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  19. 29. sij

    So will this action make a dent in the problem? We should know in a few days if the robocall volumes go down. I suspect they will in the short term. After a single (huge) IRS fraud ring in India was prosecuted, the fraud all but disappeared -- for a little while.

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  20. 29. sij

    They are trying as hard as they can, but they are fighting against malicious operators, scammers that can move infrastructure quickly, and a network that was not technologically designed to combat fraud at this scale.

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