Profile for joern
- Display name
- joernchen
- Username
- @joern@threatactor.club
- Role
- admin
About joern
Fields
- Website
- https://0day.click
- Threema
- https://threema.id/K8J68WTX
Bio
Your mom's favorite hacker!
My other account is @joernchen
- Joined
- Posts
- 635
- Followed by
- 1120
- Following
- 259
Stats
Recent posts
If only I could remember where I put that token about 3 1/2 years ago
Veranstaltungshinweis: https://www.eschschloraque.de/neon-bellies-27062025
Bin ein bisschen aufgeregt wegen https://www.offensivecon.org/speakers/2025/joernchen.html morgen
Cross functional steakholder or something, no clue I don’t eat meat…
Thanks AI
Parser Differentials have become pretty much my favorite bug class over the last years.
I am absolutely honored to get the chance to present on this topic at OffensiveCon in a few weeks.
Felt cute, might delete later
AI being useful
Soooo I built a little website based exploit for some CORS issue. Claude was really helpful to not only spit out a reasonably fast portscanner to use to find the target but also I used it to have a dark/light mode with a toggle and detection of the system default for the site.
OH: "Cloud und Rüben"
Digitalisierung, Symbolbild.
Supply chain security
The average bug bounty person
Next question:
Since I try to stay off of Twitter and don't post any more content over there please suggest some accounts I should follow here. My timeline needs some more content :D
I got a week of PTO left.
What code should I read? Please drop suggestions with a reason why I should read it.
I messed up my gotosocial instance here at threatactor.club, it's running on fly.io and a very long migration was interrupted by a health check.
I was fiddling with the sqlite DB for a while and tried to recover that mess... until I noticed that there are automated snapshots of the volume which holds the DB, daily with five days of retention. Huge props to fly.io for saving my virtual ass with this.
deepsigh for deepseek
https://openwebui.com/c/jrnjrn/c38d6dd9-5780-4f73-b4bc-8c2b6bcea9ba