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TimSweeneyEpic's profile
Tim Sweeney
Tim Sweeney
Tim Sweeney
@TimSweeneyEpic

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Tim Sweeney

@TimSweeneyEpic

Epic Games founder & CEO

epicgames.com
Joined August 2013

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    1. Tim Sweeney‏ @TimSweeneyEpic Feb 6
      • Report Tweet
      • Report NetzDG Violation

      Yikes, the creepy online ads that follow your offline real world activities finally caught up to me after successfully evading this for 5 years. It appears to be a Bluetooth information leak exploited by the Twitter app to display an Apple App Store ad.

      21 replies 37 retweets 262 likes
      Show this thread
    2. Tim Sweeney‏ @TimSweeneyEpic Feb 6
      • Report Tweet
      • Report NetzDG Violation

      It’s an App Store ad for GrubHub, shown while visiting a restaurant where a GrubHub van was picking up food. I’ve never used GrubHub and never seen an ad from them or Apple ever before. I wonder if this is Twitter exploring a Bluetooth info leak or if Apple is in cahoots.

      16 replies 5 retweets 88 likes
      Show this thread
    3. ZackInTheHouse‏ @ZackInTheBx88 Feb 7
      • Report Tweet
      • Report NetzDG Violation
      Replying to @TimSweeneyEpic

      I think Apple is in cahoots for a lot of apps. I have mic disabled but while I had the app open I verbally mentioned a store I’ve never patronized, but received ads within the next scroll.

      3 replies 1 retweet 4 likes
    4. Tim Sweeney‏ @TimSweeneyEpic Feb 7
      • Report Tweet
      • Report NetzDG Violation
      Replying to @ZackInTheBx88

      Do any apps have background access to gyros? They’re precise enough that they can pick up sound adequately for voice recognition, and some devious apps do this.

      2 replies 2 retweets 13 likes
    5. John Carmack‏Verified account @ID_AA_Carmack Feb 7
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      Replying to @TimSweeneyEpic @ZackInTheBx88

      Got a link to being able to do voice recognition from gyros in phones? I could believe it for the actual bare MEMS sensor with custom firmware, but phone report rate is usually only 100hz, and the device filters are tuned for that.

      3 replies 1 retweet 31 likes
    6. Tim Sweeney‏ @TimSweeneyEpic Feb 7
      • Report Tweet
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      Replying to @ID_AA_Carmack @ZackInTheBx88

      https://crypto.stanford.edu/gyrophone/files/gyromic.pdf …

      5 replies 4 retweets 21 likes
      Tim Sweeney‏ @TimSweeneyEpic Feb 7
      • Report Tweet
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      Replying to @TimSweeneyEpic @ID_AA_Carmack @ZackInTheBx88

      And the Wired article https://www.wired.com/2014/08/gyroscope-listening-hack/ …, questions the feasibility.

      2:56 PM - 7 Feb 2020
      • 1 Retweet
      • 5 Likes
      • ZackInTheHouse 𝓙𝓸𝓷𝓪𝓼 𝓑𝓮𝓷𝓳𝓪𝓶𝓲𝓷 M. Eric DeFazio Kaya Orsan Andre Elijah
      1 reply 1 retweet 5 likes
        1. ZackInTheHouse‏ @ZackInTheBx88 Feb 7
          • Report Tweet
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          Replying to @TimSweeneyEpic @ID_AA_Carmack

          If the hardware can do it, you can't trust the software to stop other software from accessing it. You did well for those 5 years, but you know the increased capabilities increases attack surface. I know you're no stranger to NIST nor ISA/IEC.

          0 replies 0 retweets 1 like
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