Skip to content
By using Twitter’s services you agree to our Cookies Use. We and our partners operate globally and use cookies, including for analytics, personalisation, and ads.
  • Home Home Home, current page.
  • Moments Moments Moments, current page.

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @
  • Language: English
    • Bahasa Indonesia
    • Bahasa Melayu
    • Català
    • Čeština
    • Dansk
    • Deutsch
    • English UK
    • Español
    • Filipino
    • Français
    • Hrvatski
    • Italiano
    • Magyar
    • Nederlands
    • Norsk
    • Polski
    • Português
    • Română
    • Slovenčina
    • Suomi
    • Svenska
    • Tiếng Việt
    • Türkçe
    • Ελληνικά
    • Български език
    • Русский
    • Српски
    • Українська мова
    • עִבְרִית
    • العربية
    • فارسی
    • मराठी
    • हिन्दी
    • বাংলা
    • ગુજરાતી
    • தமிழ்
    • ಕನ್ನಡ
    • ภาษาไทย
    • 한국어
    • 日本語
    • 简体中文
    • 繁體中文
  • Have an account? Log in
    Have an account?
    · Forgot password?

    New to Twitter?
    Sign up
dguido's profile
Dan Guido
Dan Guido
Dan Guido
@dguido

Tweets

Dan Guido

@dguido

CEO @trailofbits, organizer @EmpireHacking, director @hack_secure. Open DMs.

Brooklyn, NY
trailofbits.com
Joined April 2008

Tweets

  • © 2018 Twitter
  • About
  • Help Center
  • Terms
  • Privacy policy
  • Cookies
  • Ads info
Dismiss
Previous
Next

Go to a person's profile

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @

Promote this Tweet

Block

  • Tweet with a location

    You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more

    Your lists

    Create a new list


    Under 100 characters, optional

    Privacy

    Copy link to Tweet

    Embed this Tweet

    Embed this Video

    Add this Tweet to your website by copying the code below. Learn more

    Add this video to your website by copying the code below. Learn more

    Hmm, there was a problem reaching the server.

    By embedding Twitter content in your website or app, you are agreeing to the Twitter Developer Agreement and Developer Policy.

    Preview

    Why you're seeing this ad

    Log in to Twitter

    · Forgot password?
    Don't have an account? Sign up »

    Sign up for Twitter

    Not on Twitter? Sign up, tune into the things you care about, and get updates as they happen.

    Sign up
    Have an account? Log in »

    Two-way (sending and receiving) short codes:

    Country Code For customers of
    United States 40404 (any)
    Canada 21212 (any)
    United Kingdom 86444 Vodafone, Orange, 3, O2
    Brazil 40404 Nextel, TIM
    Haiti 40404 Digicel, Voila
    Ireland 51210 Vodafone, O2
    India 53000 Bharti Airtel, Videocon, Reliance
    Indonesia 89887 AXIS, 3, Telkomsel, Indosat, XL Axiata
    Italy 4880804 Wind
    3424486444 Vodafone
    » See SMS short codes for other countries

    Confirmation

     

    Welcome home!

    This timeline is where you’ll spend most of your time, getting instant updates about what matters to you.

    Tweets not working for you?

    Hover over the profile pic and click the Following button to unfollow any account.

    Say a lot with a little

    When you see a Tweet you love, tap the heart — it lets the person who wrote it know you shared the love.

    Spread the word

    The fastest way to share someone else’s Tweet with your followers is with a Retweet. Tap the icon to send it instantly.

    Join the conversation

    Add your thoughts about any Tweet with a Reply. Find a topic you’re passionate about, and jump right in.

    Learn the latest

    Get instant insight into what people are talking about now.

    Get more of what you love

    Follow more accounts to get instant updates about topics you care about.

    Find what's happening

    See the latest conversations about any topic instantly.

    Never miss a Moment

    Catch up instantly on the best stories happening as they unfold.

    1. Dan Guido‏ @dguido Mar 13

      So this http://AMDflaws.com  business... CTS Labs asked us to review their research last week, and sent us a full technical report with PoC exploit code for each set of bugs.

      35 replies 153 retweets 169 likes
      Show this thread
    2. Dan Guido‏ @dguido Mar 13

      Regardless of the hype around the release, the bugs are real, accurately described in their technical report (which is not public afaik), and their exploit code works.

      21 replies 61 retweets 77 likes
      Show this thread
    3. Dan Guido‏ @dguido Mar 13

      I initially responded to their request out of curiosity -- "Hey, do you want to see our new processor bugs before we release them?" "hell yes I do" -- but after their asks continued to grow billed them our week rate for the work.

      7 replies 5 retweets 17 likes
      Show this thread
    4. Dan Guido‏ @dguido Mar 13

      Dan Guido Retweeted Arrigo Triulzi

      I spent all morning talking to reporters, mostly to correct twitter hot takes. Yes, all the flaws require admin privs but all are _flaws_ not expected functionality.https://twitter.com/cynicalsecurity/status/973595697902706688 …

      Dan Guido added,

      Arrigo Triulzi @cynicalsecurity
      Now onto the “vulnerabilities”: 1) MASTERKEY: if you allow unauthorised BIOS updates you are screwed. Threat level: No shit, Sherlock! 2) RYZENFALL: again, loading unauthorised code on the Secure Processor as admin. Threat level: No shit, Sherlock!
      Show this thread
      13 replies 19 retweets 45 likes
      Show this thread
    5. Dan Guido‏ @dguido Mar 13

      You can find a measured take that includes my commentary on these vulnerabilities from @lorenzoFB @motherboard:https://motherboard.vice.com/en_us/article/kzpm5x/amd-secure-processor-ryzen-epyc-vulnerabilities-and-backdoors …

      7 replies 48 retweets 61 likes
      Show this thread
    6. Ryan Shrout‏Verified account @ryanshrout Mar 13
      Replying to @dguido @lorenzofb @motherboard

      How would you compare what you saw to Spectre/Meltdown? Is this more or less difficult to address?

      2 replies 0 retweets 0 likes
      Dan Guido‏ @dguido Mar 13
      Replying to @ryanshrout @lorenzofb @motherboard

      Meltdown and Spectre required novel research advances. In contrast, all of these latest flaws have been well understood since the 90s. They are not new foundational issues, they are well understood programming flaws.

      12:52 PM - 13 Mar 2018
      • 1 Retweet
      • 5 Likes
      • Kayrom Dragon Ben Kenn White Lorenzo Franceschi-Bicchierai
      0 replies 1 retweet 5 likes

      Loading seems to be taking a while.

      Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.

        Promoted Tweet

        false

        • © 2018 Twitter
        • About
        • Help Center
        • Terms
        • Privacy policy
        • Cookies
        • Ads info