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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

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    Tavis Ormandy‏Verified account @taviso 6 Jan 2019
    • Report Tweet
    • Report NetzDG Violation

    Tavis Ormandy Retweeted Seanie B.

    Reminder that this isn't just SMS 2FA; TOTP, HOTP, Push Notification login approvals, and similar schemes are equally worthless at preventing phishing, and any vendor telling you otherwise is peddling snake oil.https://twitter.com/seanieb/status/1081943785486123009 …

    Tavis Ormandy added,

    Seanie B. @seanieb
    https://github.com/drk1wi/Modlishka … "Modlishka is a flexible and powerful reverse proxy, that will take your phishing campaigns to the next level (with minimal effort required from your side)." Cc: @taviso pic.twitter.com/jxJgQkQujP
    Show this thread
    12:44 PM - 6 Jan 2019
    • 139 Retweets
    • 338 Likes
    • Acute Inflections sevpuri Pascal Ernster 🏳️‍🌈🇪🇺🇱🇺 Ethan "Mr.E" Schoonover Al_May00 Vincent Murphy soaphorn seuo Billy O'Neal WopotYaer
    13 replies 139 retweets 338 likes
      1. New conversation
      2. Reilly Grant → @reillyeon@toot.cafe‏ @reillyeon 6 Jan 2019
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        Replying to @taviso

        Why are Push Notification login approvals worthless?

        1 reply 0 retweets 2 likes
      3. Tavis Ormandy‏Verified account @taviso 6 Jan 2019
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        Replying to @reillyeon

        Because the user is trying to login (to a phishing site), so why wouldn't they approve it?

        2 replies 0 retweets 17 likes
      4. 11 more replies
      1. New conversation
      2.  ⚡️Michael Dunworth ⚡️‏ @MichaelDunwort1 6 Jan 2019
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        Replying to @taviso @rmhrisk

        First time user - SSL certificates. Returning users - Account identifiers/keyword upon login. This helps you identify that it’s the same service and relationship that you established originally. Long term solution - identity.

        3 replies 0 retweets 0 likes
      3. Tavis Ormandy‏Verified account @taviso 6 Jan 2019
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        Replying to @MichaelDunwort1 @rmhrisk

        wat

        2 replies 0 retweets 7 likes
      4. 1 more reply
      1. New conversation
      2. Steve Weis‏ @sweis 6 Jan 2019
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        Replying to @taviso

        U2F should be an exception though.

        1 reply 0 retweets 3 likes
      3. sehe‏ @sehetw 6 Jan 2019
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        Replying to @sweis @taviso

        Until Google's WebUSB standard destroys that safety as well

        1 reply 0 retweets 4 likes
      4. 1 more reply
      1. New conversation
      2. Sushil K‏ @SKisContent 6 Jan 2019
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        Replying to @taviso

        As an aside, of the people who advocate SMS 2FA, how many have locked their SIM with a PIN? Because otherwise, it’s like that picture of a gate with no fence.pic.twitter.com/JJTd5AKyYd

        3 replies 1 retweet 4 likes
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      2. John Lyle‏ @jplyle 6 Jan 2019
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        Replying to @taviso @dyn___

        It’s good to be aware of the limitations, but they aren’t worthless. Many phishing schemes don’t immediately try to login to the site being mimicked, meaning that the push notification will come at an unexpected time.

        1 reply 0 retweets 3 likes
      3. sehe‏ @sehetw 6 Jan 2019
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        Replying to @jplyle @taviso @dyn___

        Assuming bad phishes. Why wouldn't they? It's not hard with relatively traightforward toolkits.

        1 reply 0 retweets 0 likes
      4. 1 more reply

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