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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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    1. Trail of Bits‏ @trailofbits 14 Nov 2019
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      Introducing iVerify, the security toolkit for iPhone users http://blog.trailofbits.com/2019/11/14/introducing-iverify-the-security-toolkit-for-iphone-users/ …pic.twitter.com/GVXcD2to2c

      8 replies 37 retweets 74 likes
    2. NUXZDJ‏ @nuxzdj 14 Nov 2019
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      Replying to @trailofbits

      Isn’t this like AV for iOS? There isn’t much you can do from within the sandbox. Monitoring some metrics of the system through side channels doesn’t really seem like a reliable way to detect a compromise. Hardware backed attestation on the other hand..

      1 reply 0 retweets 0 likes
    3. Ryan Duff‏ @flyryan 14 Nov 2019
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      Replying to @nuxzdj @trailofbits

      It is reliable. For an iPhone to be compromised, it has to be jailbroken. Once jailbroken, a bunch of things change that can be detected through those side channels. It's purely jailbreak detection. It's not looking for what is installed after since that's post-compromise.

      3 replies 0 retweets 1 like
    4. Ryan Duff‏ @flyryan 14 Nov 2019
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      Replying to @flyryan @nuxzdj @trailofbits

      It's also worth noting that Trial of Bits is one of the leaders in iOS security research and have probably seen more jailbreaks first-hand than almost anyone else.

      1 reply 0 retweets 0 likes
    5. Ⓐ Martin Šmíd  🇰🇵‏ @over2393 15 Nov 2019
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      Replying to @flyryan @nuxzdj @trailofbits

      And proof of non-backdoor or abusive behaviour is just a dream in close-code domain, right? I would do jajlbreak as 1st step during instalation,then mask it as security tool and than filtr out any C&C activities just by showing “everything green”(super tool:free,only root &trust)

      1 reply 0 retweets 0 likes
      Dan Guido‏ @dguido 15 Nov 2019
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      Replying to @over2393 @flyryan and

      iVerify is contained by the same sandbox as every other app, and went through Apple's own extensive review process. There's no malware in iVerify. Uploading a jailbreak would simply invite Apple to permanently ban my company from the App Store.

      5:32 AM - 15 Nov 2019
      3 replies 0 retweets 0 likes
        1. New conversation
        2. Ⓐ Martin Šmíd  🇰🇵‏ @over2393 15 Nov 2019
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          Replying to @dguido @flyryan and

          Btw: somebody who does not have enough imagination, to invent openSource sales model, can’t even lick shoes of average gray hat script kiddie - no offence, just experience 25y in business :7

          1 reply 0 retweets 0 likes
        3. Ryan Duff‏ @flyryan 17 Nov 2019
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          Replying to @over2393 @dguido and

          Hah! You might want to look into who you’re replying to before trying to down-talk them….

          0 replies 0 retweets 1 like
        4. End of conversation
        1. New conversation
        2. Ⓐ Martin Šmíd  🇰🇵‏ @over2393 15 Nov 2019
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          Replying to @dguido @flyryan and

          That is fact, byt I have seen eg Canary mail client in Apple shop, where every sent email does have tracking pixel. So peer review from Apple in definitely worth but not as much as full disclosure on git(compilable, not like Android, where 500GB ram and 2 weeks of work is needed)

          1 reply 0 retweets 0 likes
        3. NUXZDJ‏ @nuxzdj 15 Nov 2019
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          Replying to @over2393 @dguido and

          Just because something is opensource doesn’t mean it doesn’t contain backdoors. No one hides them in plain sight, that would be stupid. Rather, they’re exploitable bugs left unfixed on purpose.

          3 replies 0 retweets 0 likes
        4. 1 more reply
        1. Ⓐ Martin Šmíd  🇰🇵‏ @over2393 15 Nov 2019
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          Replying to @dguido @flyryan and

          Btw: at least of some datasheet, what this thing is doing/when, could be good sign. Trust me,I’m engineer and security by obscurity were funny once upon the time, and only ever OK prooven was TrueCrypt. Rest was scam as far as I remember. Closesource in security is ☠️

          0 replies 0 retweets 0 likes
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