Christian Holler

@mozdeco

Also known as decoder. Security engineer at Mozilla Corp. working on (Firefox) fuzzing. Lock picking addict, conference speaker, physical security researcher.

Germany
unlocked.own-hero.net
Vrijeme pridruživanja: siječanj 2012.
17 fotografija ili videozapisa Fotografije i videozapisi

Tweetovi

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  1. Prikvačeni tweet
    19. srp 2018.

    Introducing the ASan Nightly Project: Surf the web with the ASan version of Firefox Nightly, help improve our security and stability, plus potentially earn a bug bounty on-the-fly. Sounds fun?

    32 proslijeđena tweeta 76 korisnika označava da im se sviđa
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  2. proslijedio/la je Tweet
    5. velj

    The AFL++ website is up: Very naive ATM, I'm open to suggestions.

    41 proslijeđeni tweet 111 korisnika označava da im se sviđa
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  3. 14. lis 2019.

    The loot I brought back from the German lockpicking championships this year: Two full epick sets and a nice new pickset. Thanks a lot to the sponsors and and of course to everyone participating for the great time!

    11 korisnika označava da im se sviđa
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  4. 10. lis 2019.

    This is a good read for everyone in security, in particular (but not only) for researchers. The result is both shocking and educational. Thanks to my friends at for doing this highly valuable work.

    When Results Are All That Matters: The Case of the Angora Fuzzer
    What is it that makes modern fuzzers successful? (Hint: It might not be what you think, and this raises questions.)
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    2 proslijeđena tweeta 13 korisnika označava da im se sviđa
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  5. 29. kol 2019.

    This post should be a mandatory read for every software developer.

    new blog post: Write Fuzzable Code in which I express a lack of sympathy for anti-fuzzing measures
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    1 reply 4 proslijeđena tweeta 16 korisnika označava da im se sviđa
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  6. 29. lip 2019.

    Random bullshit of the day: Bought a new electric toothbrush and *the interchangeable head* has a Mifare Ultralight NFC chip with a unique serial builtin. We seem to have no serious problems, right?

    4 proslijeđena tweeta 12 korisnika označava da im se sviđa
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  7. proslijedio/la je Tweet
    11. lip 2019.

    Firefox wants to be your protector against the dark side of the web.

    78 proslijeđenih tweetova 187 korisnika označava da im se sviđa
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  8. proslijedio/la je Tweet
    21. svi 2019.

    Mission accomplished! All chapters of "Generating Software Test" (aka "The Fuzzing Book") are now out and complete - from lexical fuzzing over grammar-based and concolic testing to deep GUI fuzzing. You can run the Python code right within your browser!

    44 proslijeđena tweeta 126 korisnika označava da im se sviđa
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  9. proslijedio/la je Tweet
    21. svi 2019.
    Odgovor korisniku/ci

    Let me express my deepest thanks to my co-authors Rahul Gopinath (), Marcel Böhme (), Gordon Fraser () and Christian Holler () as well as the co-workers and students at , who made all of this possible. Thanks a lot!

    2 proslijeđena tweeta 9 korisnika označava da im se sviđa
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  10. 16. svi 2019.

    Had an exciting time today as a guest on german TV, live:

    5 proslijeđenih tweetova 23 korisnika označavaju da im se sviđa
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  11. proslijedio/la je Tweet
    10. svi 2019.

    Won the Proxmark competition at and won a Proxmark 3 v4.0 with custom antenna. Awesome challenge set up by in their village. Lots of thanks to for helping out an ACR-122 convert with little to no Proxmark experience.

    1 reply 4 proslijeđena tweeta 17 korisnika označava da im se sviđa
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  12. 8. svi 2019.

    Looking forward to see you all again at !

    3 proslijeđena tweeta 7 korisnika označava da im se sviđa
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  13. 21. velj 2019.

    We (Mozilla) are looking for a full-time Security Engineer, either based in Berlin or working remote in Germany/Europe. Help us to make Firefox even more secure, apply here:

    1 reply 17 proslijeđenih tweetova 17 korisnika označava da im se sviđa
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  14. 19. velj 2019.

    According to (Oct 2018), 2 out of 32 fuzzing papers examined used this test suite. C'mon, there are 24 real security bugs, all organic, non-GMO, across all sorts of libraries, served on a silver plate for testing.

    4 korisnika označavaju da im se sviđa
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  15. 19. velj 2019.

    Public Service Announcement for the academic research community in the fuzzing/testing sector: Have you considered using the (more realistic) Google Fuzzer Test Suite for evaluating your tools/papers in addition to the LAVA-M playground? Pretty Please?

    18 proslijeđenih tweetova 66 korisnika označava da im se sviđa
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  16. 7. velj 2019.

    Implemented a Python3 bridge for libFuzzer that allows you to implement custom mutators in Python. Initial prototype up at , work in progress, but any feedback is welcome :)

    32 proslijeđena tweeta 99 korisnika označava da im se sviđa
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  17. 30. pro 2018.

    Gewalt und Extremismus sind nicht sinnvoll, egal ob rechts, links, religiös oder sonstwas... Vielleicht sollte der sich allgemeiner dagegen positionieren und für mehr Vernunft eintreten, denn die Welt wird auch immer extremer.

    1 reply 3 korisnika označavaju da im se sviđa
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  18. proslijedio/la je Tweet
    7. pro 2018.

    Dein Leben ist Deine Sache. Nicht unsere. Wir (ja, du kannst einige von uns im Video sehen) machen Firefox für Dich, nicht für Profit. Du hast in der Hand. Hol Dir jetzt Firefox:

    Du hast es in der Hand!
    Dein Leben ist Deine Sache. Nicht unsere. Wir (ja, Du kannst einige von uns im Video sehen) machen Firefox für Dich - nicht für Profit.
    1 reply 14 proslijeđenih tweetova 41 korisnik označava da mu se sviđa
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  19. 30. stu 2018.

    Some Firefox ASan Nightly statistics: 5 months, 60 users per day, 23 bugs, 11 sec-high/crit vulnerabilities, 17,000 USD in bounties paid, others still pending. Windows and Linux available: Thoughts?

    5 replies 17 proslijeđenih tweetova 62 korisnika označavaju da im se sviđa
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  20. 27. lis 2018.

    Another reason why you shouldn't blindly trust electronic locks. Many of them have mechanics that are susceptible to bypass attacks. A careful analysis is required for each model to ensure security.

    7 proslijeđenih tweetova 15 korisnika označava da im se sviđa
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  21. 1. lis 2018.

    Finally, the Dutch Open trophy is mine once more... \o/ And of course had an awesome time with all the nice people at !

    1 reply 4 proslijeđena tweeta 22 korisnika označavaju da im se sviđa
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