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.

This is the legacy version of twitter.com. We will be shutting it down on June 1, 2020. Please switch to a supported browser, or disable the extension which masks your browser. You can see a list of supported browsers in our Help Center.

  • Home Home Home, current page.
  • About

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
taviso's profile
Tavis Ormandy
Tavis Ormandy
Tavis Ormandy
Verified account
@taviso

Tweets

Tavis OrmandyVerified account

@taviso

Vulnerability researcher at Google. This is a personal stream, opinions expressed are mine.

California
taviso.decsystem.org
Joined April 2008

Tweets

  • © 2020 Twitter
  • About
  • Help Center
  • Terms
  • Privacy policy
  • Imprint
  • 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.

    Tavis Ormandy‏Verified account @taviso 20 Nov 2018
    • Report Tweet
    • Report NetzDG Violation

    I hate the phrase "raising the bar", I've noticed people use it when they're pitching some low-quality mitigation that makes the attacker do some busy work but doesn't fundamentally prevent them from achieving their original goal. 😈

    2:15 PM - 20 Nov 2018
    • 30 Retweets
    • 246 Likes
    • Lyon Yang Reigning Shells Satnam Narang Troy May Mounir ⵣ 🚴🏼‍♂️🇮🇪 m1cr0xf7 𝛁John evil comrade Dana Traversie
    32 replies 30 retweets 246 likes
      1. Tavis Ormandy‏Verified account @taviso 20 Nov 2018
        • Report Tweet
        • Report NetzDG Violation

        A: "If they have already need an arbitrary read, can't the attacker just read the secret?" B: "Look, this will break existing exploits, we're raising the bar." A: 🤦‍♂️

        9 replies 8 retweets 64 likes
        Show this thread
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. Tavis Ormandy‏Verified account @taviso 20 Nov 2018
        • Report Tweet
        • Report NetzDG Violation

        I hear that a lot, "not everyone knows how to write shellcode"...yeah, I don't know anything about plumbing but I still have hot and cold running water. If you added a one-off $50 development cost for a lifetime supporting more complexity, did you win?

        0 replies 1 retweet 4 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. New conversation
      2. Jeff Atwood‏Verified account @codinghorror 20 Nov 2018
        • Report Tweet
        • Report NetzDG Violation
        Replying to @taviso

        I dunno, I figure a lot of attackers are lazy and/or script kiddies. You're right that it won't stop determined attackers, of course.

        2 replies 0 retweets 12 likes
      3. Tavis Ormandy‏Verified account @taviso 20 Nov 2018
        • Report Tweet
        • Report NetzDG Violation
        Replying to @codinghorror

        A script kiddie, by definition, uses the work of others. If you make them pay a one-off development fee of $50 to jump through a hoop, and in exchange increased complexity of your code...did you really win?

        3 replies 0 retweets 6 likes
      4. 2 more replies
      1. New conversation
      2. Mohammed Aldoub‏ @Voulnet 20 Nov 2018
        • Report Tweet
        • Report NetzDG Violation
        Replying to @taviso

        Where do you set the line between effective mitigations that make defense in depth better vs low quality mitigations that are simply another cute challenge to an attacker?

        1 reply 0 retweets 2 likes
      3. Tavis Ormandy‏Verified account @taviso 20 Nov 2018
        • Report Tweet
        • Report NetzDG Violation
        Replying to @Voulnet

        If it requires a new capability the attacker hasn't already demonstrated (another bug class, for example), great. If it requires some busy work or jumping through a few hoops, then you've just added significant complexity for questionable gains.

        2 replies 4 retweets 22 likes
      4. 23 more replies
      1. New conversation
      2. API ERROR‏ @SwiftOnSecurity 20 Nov 2018
        • Report Tweet
        • Report NetzDG Violation
        Replying to @SwiftOnSecurity @0xMatt and

        That’s actually really empowering to hear and makes the little efforts feel worthy even if in theory they are not hermetically sealed doors

        1 reply 0 retweets 3 likes
      3. API ERROR‏ @SwiftOnSecurity 20 Nov 2018
        • Report Tweet
        • Report NetzDG Violation
        Replying to @SwiftOnSecurity @0xMatt and

        When you’re in Ops and you have very little power, moving the bar a millimeter at a time is all you can do. You will never “solve” anything. Though I get your point, I think there are so many basics and the bar is so insanely low right now, it’s a worthy metaphor in some cases.

        2 replies 1 retweet 6 likes
      4. 1 more reply
      1. New conversation
      2. Eric Lawrence  🎻‏ @ericlaw 20 Nov 2018
        • Report Tweet
        • Report NetzDG Violation
        Replying to @taviso

        My problem is that anytime I hear "raising the bar" I can only think of limbo.

        1 reply 0 retweets 8 likes
      3. Lizzz Farrell‏ @lizzz_818 20 Nov 2018
        • Report Tweet
        • Report NetzDG Violation
        Replying to @ericlaw @taviso

        Yeah, that's lowering the bar.

        0 replies 0 retweets 3 likes
      4. End of conversation

    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

      • © 2020 Twitter
      • About
      • Help Center
      • Terms
      • Privacy policy
      • Imprint
      • Cookies
      • Ads info