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pcwalton's profile
Patrick Walton
Patrick Walton
Patrick Walton
@pcwalton

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Patrick Walton

@pcwalton

Research engineer at Mozilla

San Francisco, CA
pcwalton.github.io
Joined November 2009

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    1. Pinboard‏ @Pinboard 24 Aug 2018
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      Pinboard Retweeted Patrick Traynor

      Thanks for giving me so much grief and Twitter drama about saying "Android is not safe to use for journalists or Congressional campaigns"https://twitter.com/patrickgtraynor/status/1032997173288427520 …

      Pinboard added,

      Patrick Traynor @patrickgtraynor
      Ever plug your phone into an arbitrary charger around the office or at an airport? Our #usesec18 paper shows that we can easily bypass most #android lock screens and then do pretty much whatever we want using old-school AT commands. Patch, then check out our work! #infosec https://twitter.com/kevinrbbutler/status/1032453750475182081 …
      Show this thread
      1 reply 17 retweets 74 likes
      Show this thread
    2. Pinboard‏ @Pinboard 24 Aug 2018
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      There's a device called a USB filter that turns every USB port into a charge-only port, and protects against sketchy charging ports. Add this helpful dongle to your life if you travel a lot:https://www.amazon.com/Plugable-Universal-Charge-Only-Adapter-Android/dp/B00FA9GXKM/ref=sr_1_1?s=wireless&ie=UTF8&qid=1535130533&sr=1-1&keywords=usb+filter …

      4 replies 112 retweets 242 likes
      Show this thread
    3. Pinboard‏ @Pinboard 24 Aug 2018
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      I would rather live in a world where there are both Android devices and iPhones that are out-of-the-box secure enough for a campaign to use. And I know Google is full of engineers who are trying to make this happen. But the effort dies somewhere in the domain of upper management

      3 replies 5 retweets 32 likes
      Show this thread
    4. Billy Ray Valentine‏ @spongeclipper 24 Aug 2018
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      Replying to @Pinboard

      It’s not even upper management. Android itself has decent exploit mitigation work, etc. it’s OEMs and the fucked up android vendor ecosystem. Bugs happen. Bugs that may be unpatchable amd that users won’t know they have because the vendor has long since moved on, however...

      3 replies 0 retweets 3 likes
    5. Pinboard‏ @Pinboard 24 Aug 2018
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      Replying to @spongeclipper

      I understand the complaint about the ecosystem, but Google also manufactures its own phone, which it has chosen not to make safe.

      3 replies 0 retweets 5 likes
    6. Patrick Walton‏ @pcwalton 24 Aug 2018
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      Replying to @Pinboard @spongeclipper

      If you read the paper (https://www.usenix.org/system/files/conference/usenixsecurity18/sec18-tian.pdf …), you’ll notice that the severity of the issues on Google phones is low. The really bad issues were all OEM phones. I’m frequently a big Google critic, but IMO you’re being unfair.

      3 replies 0 retweets 6 likes
    7. Pinboard‏ @Pinboard 24 Aug 2018
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      Replying to @pcwalton @spongeclipper

      As @matthew_d_green points out, the lock screen is functionally the last line of defense on an Android phone, so "it's almost not broken" is not a reassuring consolation. I agree that the phones Google makes are the safest, but they are not safe enough, and that is on Google

      2 replies 0 retweets 3 likes
      Patrick Walton‏ @pcwalton 24 Aug 2018
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      Replying to @Pinboard @spongeclipper @matthew_d_green

      Read the paper. Nexus devices were immune to the lock screen bypass. Lock screen bypass was specific to some OEM phones.

      11:55 AM - 24 Aug 2018 from Nob Hill, San Francisco
      • 1 Retweet
      • 7 Likes
      • Mark Eichin Deirdre Connolly¹ L Irvan Putra Billy Ray Valentine 🚲🚎🥑 Thomas H. Ptacek
      1 reply 1 retweet 7 likes
        1. New conversation
        2. Matthew Green‏ @matthew_d_green 24 Aug 2018
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          Replying to @pcwalton @Pinboard @spongeclipper

          It’s not totally a slam dunk though.pic.twitter.com/q32Ip1g6HK

          1 reply 0 retweets 3 likes
        3. Patrick Walton‏ @pcwalton 24 Aug 2018
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          Replying to @matthew_d_green @Pinboard @spongeclipper

          Well, if we’re talking about theoretical vulnerabilities, couldn’t iBoot be theoretically vulnerable too? I still think Apple is being given too much of a pass here…

          1 reply 0 retweets 2 likes
        4. 15 more replies

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