frevib

@hielkedv

Software developer and security engineer

OFTC #techinc
Joined January 2009

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  1. Retweeted
    Jan 16

    Pretty nice article about "How does non-blocking IO work under the hood?" by Hielke de Vries from

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  2. Jan 19

    vs : simple echo server. io_uring +99% performance, -45% cpu usage. Wow. . 🏆io_uring🏆. Try for yourself: io_uring: epoll:

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  3. Retweeted

    'Ware MS Office documents bearing Christmas tidings. (Oh, and ensure your patches are up to date :)

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  4. 18 May 2015
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  5. Retweeted
    17 Mar 2015

    Crypto is hard! app uses DES encryption (?!) and stores clear text secret key in preferences

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  6. Retweeted
    13 Feb 2015

    Todays participant gifted me with Stroopwafels! Awesome!

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  7. Retweeted
    24 Nov 2014

    531 Dutch apps w/ private data: 199 use no SSL, 43 use broken implementation (time spent: 3 months, 6 researchers in spare time)

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  8. Retweeted
    23 Nov 2014
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  9. Retweeted
    23 Nov 2014

    Honderden Nederlandse apps zijn onveilig. Ze sturen persoonlijke informatie van gebruikers zonder enige beveiliging:

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  10. Retweeted
    17 Nov 2014
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  11. Retweeted
    25 Sep 2014

    F5 BIG-IP vulnerable to . Requires access to web-based configuration utility //

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  12. Retweeted
    17 Aug 2014
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  13. 18 Aug 2014

    web68: LFI with curl -F. Web200: http parameters stage1,stage2 and stage3.

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  14. 15 Aug 2014

    Just finished . Working through host hardening lists...

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  15. Retweeted
    25 Jul 2014

    In 10 years, I have not found a more effective picture to explain software security.

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  16. Retweeted
    13 Jun 2014

    Holland!

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  17. Retweeted

    Team AWESOM-O from Netherlands has registered for , can YOUR team take them on? Register your team!!

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  18. 29 May 2014
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  19. Retweeted
    27 May 2014
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  20. 10 May 2014

    Untar the file which is a NES rom. Play till level 2 and find the flag. Fun game.

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