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Sijmen Ruwhof

Personal blog · sijmen.ruwhof.net/weblogsecurity

Sijmen Ruwhof's personal blog at sijmen.ruwhof.net covers security. Since 2014, 14 different Hacker News readers have linked it 17 times, most often “How to hack the upcoming Dutch elections and how hackers could have since 2009”. It is still writing: the last post was on 2026-10-21, and you can follow it by feed.

Visit the blog
17mentions?
14HN people?
2014–2018first – last linked?
Links on Hacker News per year · peak 6 in 2015

Too few sampled comments (4) to say how often HN recommends it.?

Why HN links it

HN readers link this blog for security research, including a document on how Dutch elections could be hacked and an analysis of a Chrome HTTPS address spoofing vulnerability.

Summarised by Claude from a sample of 4 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.

Most-linked posts?

  1. How to hack the upcoming Dutch elections and how hackers could have since 2009
    3 people · 4 mentions · first linked 2017-01-30
  2. How I could hack internet bank accounts of Danish largest bank in a few minutes
    2 people · 3 mentions · first linked 2015-10-05
  3. Personal data of Dutch telecom providers poorly protected
    2 people · 2 mentions · first linked 2015-12-08

What Hacker News says?

  1. wila · 2017-02-02Recommends
    Sure, read this > https://sijmen.ruwhof.net/weblog/1166-how-to-hack-the-upcomi...

    Comment linking /weblog/1166-how-to-hack-the-upcoming-dutch-elections

    on “Fearful of Hacking, Dutch Will Count Ballots by Hand”
  2. Submitted One of the world’s most visited websites that nobody is aware of (2017) as a story · 321 points

    HN discussion
  3. wila · 2017-02-02Recommends
    This is due to a Dutch ethical hacker (Sijmen Ruwhof) investigating the way that our elections work. He had posted a great research document [0] that showed how bad our current system was. Two days later, we're back to paper. Thanks Sijmen :) [0] https://sijmen.ruwhof.net/weblog/1166-how-to-hack-the-upcomi...

    Comment linking /weblog/1166-how-to-hack-the-upcoming-dutch-elections

    on “Fearful of Hacking, Dutch Will Count Ballots by Hand”
  4. Submitted How I found a data leak of a company during a college lecture as a story · 142 points

    HN discussion
  5. Some more context: https://sijmen.ruwhof.net/weblog/1166-how-to-hack-the-upcomi...

    Comment linking /weblog/1166-how-to-hack-the-upcoming-dutch-elections

    on “Fearful of Hacking, Dutch Will Count Ballots by Hand”
  6. Submitted How I could hack internet bank accounts of Danish largest bank in a few minutes as a story · 68 points

    HN discussion
  7. For those interested, I made an extensive security risk analysis of the situation and published it on my web log: http://sijmen.ruwhof.net/weblog/447-security-risk-analysis-o...

    Comment linking /weblog/447-security-risk-analysis-of-address-bar-spoofing-bug-in-chrome-and-opera

    on “Chrome address spoofing vulnerability proof-of-concept for HTTPS”
  8. Submitted Personal data of Dutch telecom providers poorly protected as a story · 67 points

    HN discussion
  9. Submitted How to hack the upcoming Dutch elections and how hackers could have since 2009 as a story · 40 points

    HN discussion
  10. Submitted Massive child porn site is hiding in plain sight as a story · 34 points

    HN discussion
  11. Submitted Cross-site scripting in millions of web sites as a story · 18 points

    HN discussion
  12. Submitted How I could hack internet bank accounts of Danish largest bank in a few minutes as a story · 5 points

    HN discussion
  13. Submitted One of the most visited sites in the world that nobody is aware of as a story · 4 points

    HN discussion
  14. Submitted How I could access 12M+ records from the Phone House and Dutch telecom providers as a story · 4 points

    HN discussion
  15. Submitted How I could hack internet bank accounts of Danish largest bank in a few minutes as a story · 4 points

    HN discussion
  16. Submitted Password database of MediaMarkt leaks again as a story · 1 points

    HN discussion
  17. Submitted Cross-site scripting in millions of web sites via #jQuery Validation Plugin as a story · 1 points

    HN discussion

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