Jonathan Lu
blog.jonlu.ca · Personal blog · on HN since 2018
Jonathan Lu writes about reverse engineering, security, and hacking projects, including stream decryption, API analysis, and Nintendo Switch fuses.
What HN saysHN links it for his reverse engineering and security write-ups, and one commenter praises his stream-decryption work as mentally demanding.
22HN people shared it
4linked it in comments
82stories submitted
2.9Kstory points
5 months agolast shared
2018people per year2026
Most-shared posts
- 1Illegal streams, decrypting m3u8's, building a better stream experience (2018)5 people · 53 points · first shared 2018 · 12 comments on HN
- 2Speeding up Zsh and Oh-My-Zsh5 people · 12 points · first shared 2018 · 1 comments on HN
- 3Experiments and leaking company secrets through your testing infrastructure4 people · 98 points · first shared 2019 · 20 comments on HN
- 4Making 1000 HTTP requests per second in Python3 people · 35 points · first shared 2021 · 26 comments on HN
- 5Nintendo Switch prevents downgrades by irreparably blowing its own fuses (2020)2 people · 669 points · first shared 2020 · 481 comments on HN
- 6Building an OpenTable Bot2 people · 59 points · first shared 2021 · 6 comments on HN
- 7How much space would it take to store every word ever said? (2020)2 people · 6 points · first shared 2020 · discussion on HN
- 8Analyzing Seated's restaurants by reversing their API2 people · 5 points · first shared 2022 · discussion on HN
- 9What is tax loss harvesting?2 people · 4 points · first shared 2021 · discussion on HN
- 10Email Authentication: SPF, DKIM and Dmarc Out in the Wild2 people · 4 points · first shared 2019 · discussion on HN
- 11Reverse engineering a flight spotting app2 people · 4 points · first shared 2025 · discussion on HN
- 12Finding cool CA license plates2 people · 4 points · first shared 2025 · 1 comments on HN
- 13Reversing Lyft's ride history API to analyze 6 years worth of rides2 people · 3 points · first shared 2020 · 1 comments on HN
- 14Ryanair, Hamiltonian Cycles, and using graph theory to find cheap flights1 people · 675 points · first shared 2018 · 130 comments on HN
- 15Reversing Safeway's private APIs to automate coupon collection1 people · 308 points · first shared 2019 · 145 comments on HN
What HN people wrote when they linked it
jonluca · 2023-07-04
https://blog.jonlu.ca/
Mostly reverse engineering and security write ups
mkw5053 · 2025-12-18
Very similar to this post from a few months ago - https://blog.jonlu.ca/posts/ca-plate-checker
scalableUnicon · 2020-03-09
From the console:
> Media resource https://blog.jonlu.ca/assets/eightkhz_resampled.wav could not be decoded, error: Error Code: NS_ERROR_DOM_MEDIA_METADATA_ERR (0x806e0006)
You can download and play those audios directly: https://blog.jonlu.ca/assets/eightkhz_resampled_unfrequencied.wav
and
https://blog.jonlu.ca/assets/eightkhz_resampled_unfrequencied.wav
abledon · 2019-09-12
based upon some of the work you've shown on your blog
https://blog.jonlu.ca/posts/illegal-streams I'm glad they are compensating you fairly.
Most people could not do this type of mental work.