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wdormann's profile
Will Dormann
Will Dormann
Will Dormann
@wdormann

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Will Dormann

@wdormann

Vulnerability Analyst at the CERT/CC. My thoughts are my own, not my employer's.

Joined August 2012

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    1. SwiftOnSecurity‏ @SwiftOnSecurity 11 Jan 2016
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      • Report NetzDG Violation

      Bobby installed an app to get free porn. Now Bobby has a Smartphone Transmitted Disease. Don't be Bobby. Abstain from 3rd-party apps.

      21 replies 115 retweets 240 likes
    2. Will Dormann‏ @wdormann 16 Jan 2019
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      Replying to @SwiftOnSecurity

      Only consider installing a mobile app *after* you've determined that the mobile website does not meet your needs. Using the browser instead of an app protects your privacy and reduces your attack surface.

      14 replies 61 retweets 191 likes
    3. Jim DeVries‏ @JimDinMN 16 Jan 2019
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      Replying to @wdormann @SwiftOnSecurity

      Your tweet sent me down a rabbit hole - namely, how far back in your TL would I have to go to find mention of an IOS app with a major flaw? Answer: I gave up. IOS seems more resistant to leaking data than Android. Would you agree?

      1 reply 0 retweets 0 likes
    4. Will Dormann‏ @wdormann 16 Jan 2019
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      Replying to @JimDinMN @SwiftOnSecurity

      At some point, iOS gave you granular control of app permissions, and Android did not. That's when I switched. However, modern Android does finally give the user a similar level of control. As for my personal focus on Android apps, it's simply because I have an app downloader.

      2 replies 0 retweets 0 likes
    5. Chris King‏ @armengar 16 Jan 2019
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      Replying to @wdormann @JimDinMN @SwiftOnSecurity

      @tvidas did a paper on this precise problem a few years back. iOS does JIT permissions whereas android does install time perms. May be fixed more recently in android. http://www.ieee-security.org/TC/W2SP/2011/papers/curbingPermissionCreep.pdf … .

      1 reply 0 retweets 0 likes
      Will Dormann‏ @wdormann 16 Jan 2019
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      Replying to @armengar @JimDinMN and

      This changed with apps that target Android 6.0, which was released in 2015. Those apps behave similar to iOS apps, where permissions are granted or denied at run time.

      7:13 PM - 16 Jan 2019
      • 3 Likes
      • Jim DeVries 🏳️‍🌈trans anarcho-catalyzer🏳️‍🌈 (she/they) Chris King
      1 reply 0 retweets 3 likes
        1. New conversation
        2. Tim Vidas‏ @tvidas 16 Jan 2019
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          Replying to @wdormann @armengar and

          yep, and I follow some of your Android narratives (like the recent mass downloading and subsequent cert checks) One thing that @Android doesn't really do, even after 6.0, is give users full selective control of perms. For instance, one cannot deny INTERNET for any given app

          2 replies 0 retweets 1 like
        3.  🏳️‍🌈trans anarcho-catalyzer 🏳️‍🌈 (she/they)‏ @SaphiDragonRa 17 Jan 2019
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          Replying to @tvidas @wdormann and

          Since I can deny Wifi and mobile data permissions for each App seperately, do you know of another way for the app to contact the Internet? If not, I'd say it totally is possible.

          1 reply 0 retweets 0 likes
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