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Lukasz Olejnik

Personal blog · blog.lukaszolejnik.comsecurityweb

Lukasz Olejnik writes Security, Privacy & Tech Inquiries, a personal blog at blog.lukaszolejnik.com about security and web. Since 2016, 124 different Hacker News readers have linked it 158 times, most often “Stealing sensitive browser data with the W3C Ambient Light Sensor API (2017)”. It is still writing: the last post was on 2026-08-25, and you can follow it by feed.

Visit the blog
158mentions?
1recommend?
124HN people?
2016–2026first – last linked?
Links on Hacker News per year · peak 33 in 2017

Too few sampled comments (10) to say how often HN recommends it.?

Why HN links it

HN readers link Olejnik's privacy analyses of Chrome cookies, GDPR consent, Apple tracking and Web Bluetooth. Most comments only correct or update the submitted URL.

Recommended for · 1 comments
one commenter says 'I recommend this read' about the GDPR Chrome cookie post

Summarised by Claude from a sample of 10 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.

Lukasz Olejnik writes about security, privacy, Web, technology and technology policy matters.

Most-linked posts?

  1. Stealing sensitive browser data with the W3C Ambient Light Sensor API (2017)
    9 people · 9 mentions · first linked 2017-04-19
  2. Are You Sure Your iMessage Is Encrypted? Blue Green
    5 people · 5 mentions · first linked 2017-07-12
  3. Browser mechanism used by trackers in privacy profiling and fingerprinting
    4 people · 4 mentions · first linked 2017-03-21
  4. Privacy of Progressive Web Apps
    4 people · 4 mentions · first linked 2019-04-08
  5. Highlights of french cybersecurity strategy
    4 people · 4 mentions · first linked 2018-02-13
  6. Am I logged in or not? GDPR case study on the example of Chrome browser change
    4 people · 4 mentions · first linked 2018-09-24
  7. Web Bluetooth. Pairing devices with remove websites stealing location data?
    3 people · 3 mentions · first linked 2016-10-25
  8. GDPR fines: a technical primer. Not always 20M euros
    3 people · 3 mentions · first linked 2018-05-07
  9. Data Protection Assessment of Privacy Sandbox's Protected Audience API
    3 people · 3 mentions · first linked 2024-01-03
  10. Leaked ePrivacy directive interesting points. Web browsers concerned
    3 people · 3 mentions · first linked 2016-12-13

What Hacker News says?

  1. Your url does not work for me (404), this one does: https://blog.lukaszolejnik.com/am-i-logged-in-or-not-gdpr-ca...

    Comment linking /am-i-logged-in-or-not-gdpr-case-study-on-the-example-of-chrome-browser-change/

    on “Chrome 69 will keep Google Cookies when you tell it to delete all cookies”
  2. Submitted Am I logged in or not? GDPR case study on the example of Chrome browser change as a story · 681 points

    HN discussion
  3. ctavan · 2018-09-25Recommends
    I recommend this read: https://blog.lukaszolejnik.com/am-i-logged-in-or-not-gdpr-ca...

    Comment linking /am-i-logged-in-or-not-gdpr-case-study

    on “Chrome 69 will keep Google Cookies when you tell it to delete all cookies”
  4. Submitted European Union dedicated questionnaire on the Encryption of Data as a story · 240 points

    HN discussion
  5. Real URL in case you don't allow JavaScript for the redirect: https://blog.lukaszolejnik.com/am-i-logged-in-or-not-gdpr-ca...

    Comment linking /am-i-logged-in-or-not-gdpr-case-study-on-the-example-of-chrome-browser-change

    on “Am I logged in or not? GDPR case study on the example of Chrome browser change”
  6. Submitted Stealing sensitive browser data with the W3C Ambient Light Sensor API (2017) as a story · 113 points

    HN discussion
  7. http://info.iapp.org/dz0uBmdUa20MA00Z5o100E0 redirects to: https://blog.lukaszolejnik.com/am-i-logged-in-or-not-gdpr-ca... Please update the submission URL.

    Comment linking /am-i-logged-in-or-not-gdpr-case-study-on-the-example-of-chrome-browser-change/

    on “Am I logged in or not? GDPR case study on the example of Chrome browser change”
  8. Submitted Stealing Sensitive Browser Data with the W3C Ambient Light Sensor API as a story · 105 points

    HN discussion
  9. This is starting to remind me of when Intelligent Tracker Prevention(tm) was released and instead was a super cookie leaking history. http://blog.lukaszolejnik.com/curious-case-of-privacy-vulner... I'd be much more comfortable with Apple being Privacy, Inc. if they kept their commitment to it, too often it looks like engineers got overrode by marketing. It's v unlikely a privacy engineer signed off on something, wit…

    Comment linking /curious-case-of-privacy-vulnerability-in-intelligent-tracking-prevention/

    on “Emulating AirTags to upload arbitrary data via Apple's FindMy network”
  10. Submitted Russia confirms US cybercommand cyberattack; RAID controllers destroyed as a story · 99 points

    HN discussion
  11. Brave indeed does block WebBluetooth by default, but it can be turned on by the user using flags. It's by no means a new feature, but the privacy concerns outlined in this post are still valid 10 years later: https://blog.lukaszolejnik.com/w3c-web-bluetooth-api-privacy...

    Comment linking /w3c-web-bluetooth-api-privacy/

    on “Developers are choosing older AI models”
  12. Submitted Reidentification ban is not a solution as a story · 59 points

    HN discussion
  13. I would argue it's because Google has to value security and privacy in a way Apple doesn't - Google has to build platforms instead of gardens, so there's an 'adversarial' incentive to make sure you're not held liable due to a 3rd parties actions. Also, these incidents would be a thermonuclear event for search due to the intimacy and inherent 'Internet-ness' of the data - versus Apple, who can get away with incidents…

    Comment linking /curious-case-of-privacy-vulnerability-in-intelligent-tracking-prevention/

    on “Safely open apps on your Mac”
  14. Submitted European Union allowing the use of deepfakes as a story · 56 points

    HN discussion
  15. Url changed from https://blog.lukaszolejnik.com/solving-phishing-is-not-simpl... , which points to this.

    Comment linking /solving-phishing-is-not-simple-can-anti-phishing-training-make-it-even-worse/

    on “Phishing in organizations: Findings from a large-scale and long-term study”
  16. Submitted French application of international rules to cyberwarfare as a story · 56 points

    HN discussion
  17. Thanks! changed from https://blog.lukaszolejnik.com/am-i-logged-in-or-not-additio... .

    Comment linking /am-i-logged-in-or-not-addition-to-the-gdpr-case-study-on-the-example-of-google-chrome-69-70/https://blog.lukaszolejnik.com/am-i-logged-in-or-not-addition-to-the-gdpr-case-study-on-the-example-of-google-chrome-69-70/

    on “Google made a joke out of Chrome privacy policy”
  18. Submitted On Google’s Policy Change Towards Fingerprinting as a story · 48 points

    HN discussion
  19. link should be: https://blog.lukaszolejnik.com/am-i-logged-in-or-not-additio...

    Comment linking /am-i-logged-in-or-not-addition-to-the-gdpr-case-study-on-the-example-of-google-chrome-69-70/

    on “Google made a joke out of Chrome privacy policy”
  20. Submitted TikTok could bypass US blockade by making a PWA as a story · 31 points

    HN discussion
  21. Submitted The EC is turning Google Search into a privacy and national-security risk as a story · 6 points

    HN discussion
  22. Submitted Fixing web browser history leaks as a story · 6 points

    HN discussion
  23. Submitted New GDPR changes the definition of personal data as a story · 5 points

    HN discussion
  24. Submitted Chrome will tell sites what text users search for on websites – privacy analysis as a story · 5 points

    HN discussion
  25. Submitted Web browsing history kind of confirmed as a new type of personal data – now what as a story · 4 points

    HN discussion
  26. Submitted Netherlands on rules applying to cyberattacks and legal attribution steps as a story · 4 points

    HN discussion
  27. Submitted French doctrine of offensive cyber operations as a story · 4 points

    HN discussion
  28. Submitted Google made a joke out of Chrome privacy policy as a story · 4 points

    HN discussion
  29. Submitted Privacy Engineering Principles Recommended by NIST as a story · 4 points

    HN discussion
  30. Submitted Uber is profiling users based on battery level information? as a story · 4 points

    HN discussion

Search all of HN for blog.lukaszolejnik.com

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