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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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    1. Martijn Grooten‏ @martijn_grooten 20 Feb 2018
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      Replying to @martijn_grooten @taviso and

      And again, I like a whitelisting based approach. I've recommended iPhones to people who are high value targets for that reason (though I have an Android phone myself). I'm totally fine with more orgs discovering this approach to security.

      1 reply 0 retweets 0 likes
    2. Martijn Grooten‏ @martijn_grooten 20 Feb 2018
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      Replying to @martijn_grooten @taviso and

      AV is an imperfect solution in an imperfect world, but for almost all users, it provides a net benefit.

      1 reply 1 retweet 0 likes
    3. Tavis Ormandy‏Verified account @taviso 20 Feb 2018
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      Replying to @martijn_grooten @stacksmasher and

      Stop calling AV imperfect, this is like saying CRC16 is an imperfect cryptographic hash. AV does not provide a net benefit, we've already explained to you the serious problems we face shipping secure software because of Antivirus.

      2 replies 1 retweet 4 likes
    4. Martijn Grooten‏ @martijn_grooten 20 Feb 2018
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      Replying to @taviso @stacksmasher and

      I said almost all users. We need tell high value targets (journalists, activists etc.) to lock down their devices to the point that AV doesn't provide any benefits (and should be removed). I've been saying that for years.

      1 reply 0 retweets 0 likes
    5. Tavis Ormandy‏Verified account @taviso 20 Feb 2018
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      Replying to @martijn_grooten @stacksmasher and

      In exchange for a trivially bypassable blacklist, it introduces serious vulnerabilities that the industry refuses to take responsibility for. "Well nobody's perfect!", "Those problems are out of our threat model!", I've heard it before and explained why that doesn't cut it.

      1 reply 1 retweet 0 likes
    6. Martijn Grooten‏ @martijn_grooten 20 Feb 2018
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      Replying to @taviso @stacksmasher and

      OK, I just told my parents to remove AV from their PC, because of all the reasons you cited (which, again, are very valid concerns that we're not taking seriously enough). What should they do instead?

      3 replies 0 retweets 1 like
    7. Tavis Ormandy‏Verified account @taviso 20 Feb 2018
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      Replying to @martijn_grooten @stacksmasher and

      How about your buy your parents a Chromebook Martjin, or Windows 10 S? That's an easy solution, probably cheaper than your Kaspersky subscription and actually good security.

      1 reply 0 retweets 1 like
    8. Martijn Grooten‏ @martijn_grooten 20 Feb 2018
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      Replying to @taviso @stacksmasher and

      They're teachers. They sometimes need to download software for school projects that doesn't work on every OS. Also, let's assume they a) use free AV and b) can't afford a new computer.

      2 replies 0 retweets 1 like
    9. Thomas Berger‏ @TW_Berger 20 Feb 2018
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      Replying to @martijn_grooten @taviso and

      Create a backup/reset medium for them. No interaction. Hard code a script that dumps the 2018-02-20 drive image onto the laptop's HDD/SSD. (dd(1), xz(1), secureboot, etc.)

      1 reply 0 retweets 0 likes
    10. Tavis Ormandy‏Verified account @taviso 20 Feb 2018
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      Replying to @TW_Berger @martijn_grooten and

      A Chromebook would be fine, it's <$200 and actually secure, and is perfect for most users. Martjin is being difficult, it's the standard AV industry schtick of "Any replacement has to be perfect, but we don't have to be".

      2 replies 0 retweets 0 likes
      Tavis Ormandy‏Verified account @taviso 20 Feb 2018
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      Replying to @taviso @TW_Berger and

      Yes, the whitelisting market is immature and currently enterprise focussed, but he is actually in a position to fix that. Imagine how slick and easy it would be if all the people employed to populate blacklists were populating whitelists? Most people would never notice it.

      8:33 AM - 20 Feb 2018
      1 reply 0 retweets 0 likes
        1. New conversation
        2. Tavis Ormandy‏Verified account @taviso 20 Feb 2018
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          Replying to @taviso @TW_Berger and

          Seamless hourly updates of new safe software, enterprise social whitelisting like AppNot, Martjin's favorite "most users" would never notice. If you forgot to pay your subscription, you would actually remain secure. 🤯

          2 replies 0 retweets 0 likes
        3. Martijn Grooten‏ @martijn_grooten 20 Feb 2018
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          Replying to @taviso @TW_Berger and

          Awesome. I'm in favour of that. But I worry you overestimate my importance/influence when you say I'm "in a position to fix that". If only...

          1 reply 0 retweets 0 likes
        4. 3 more replies

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