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justinschuh's profile
Justin Schuh 🤬
Justin Schuh 🤬
Justin Schuh  🤬
@justinschuh

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Justin Schuh  🤬

@justinschuh

Engineering Director on @GoogleChrome Trust & Safety. Co-wrote TAoSSA http://amzn.com/0321444426 . Past life in USMC/NSA/CIA. He, him, thou who shall not be named.

Silicon Valley
Joined September 2009

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    1. Justin Schuh  🤬‏ @justinschuh Jan 22
      • Report Tweet

      Justin Schuh  🤬 Retweeted Lukasz Olejnik

      This is a bigger problem than Safari's ITP introducing far more serious privacy vulnerabilities than the kinds of tracking that it's supposed to mitigate. The cross-site search and related side-channels it exposes are also abusable security vulnerabilities.https://twitter.com/lukOlejnik/status/1219873289230856198 …

      Justin Schuh  🤬 added,

      Lukasz Olejnik @lukOlejnik
      Apple/Safari Intelligent Tracking Prevention is a mechanism intended to improve privacy. It was found to have privacy vulnerabilities allowing sites to track the user (and fingerprint), and to stealing web browser history of a user. Incredible find. https://arxiv.org/pdf/2001.07421.pdf … pic.twitter.com/HR48ulUoHK
      Show this thread
      5 replies 61 retweets 117 likes
      Show this thread
    2. Justin Schuh  🤬‏ @justinschuh Jan 22
      • Report Tweet

      To add some context, Chrome's XSS Auditor was found to introduce exactly the same class of side-channel vulnerabilities. After several back and forths with the team that discovered the issue, we determined that it was inherent to the design and had to remove the code.

      2 replies 17 retweets 61 likes
      Show this thread
    3. Justin Schuh  🤬‏ @justinschuh Jan 22
      • Report Tweet

      I have no idea what Apple plans to do about this, because it's been a defining theme in their anti-tracking approach (and one of our major concerns). They attempt to mitigate tracking by adding state mechanisms, but adding state often introduces worse privacy/security issues.

      3 replies 8 retweets 30 likes
      Show this thread
    4. Jamie Bishop‏ @jamiebishop123 Jan 22
      • Report Tweet
      Replying to @justinschuh

      Jamie Bishop Retweeted

      They already fixed it apparently https://twitter.com/lucasexqdit/status/1219932716117958656?s=21 … https://twitter.com/LucasExqDit/status/1219932716117958656 …

      Jamie Bishop added,

      This Tweet is unavailable.
      1 reply 0 retweets 0 likes
      Justin Schuh  🤬‏ @justinschuh Jan 22
      • Report Tweet
      Replying to @jamiebishop123

      No, I can assure you that they still haven't fixed these issues, which is what made that blog post last year so weird. Apple didn't disclose the vulnerabilities or appropriately credit the researchers, but put out a post implying they fixed "something".

      9:12 AM - 22 Jan 2020
      • 5 Retweets
      • 22 Likes
      • ⚡ PROF. ♦`MARK´♦`ALLEN´♦`SOVA´♦ PH.D. ⚡ 🛰CYBER📡 Angela Amily Gregory P🎆 Smith (he/him) Mᴀʀᴋ »Q« Kubacki L0C4LH057 Christoph Tavan Kevin LeRoy Craig Stuntz Michael Kleber
      2 replies 5 retweets 22 likes
        1. Paresh Dave‏Verified account @peard33 Jan 22
          • Report Tweet
          Replying to @justinschuh @jamiebishop123

          Hi Justin, I've asked Google PR to elaborate on your comments and they've declined, so curious if you directly want to provide any documentation on why the fixes described in the blog are insufficient.

          0 replies 0 retweets 1 like
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