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Posts by joern

RIP FX

We collected some texts from the community in memory of @fxv2.bsky.social . You can find them here phenoelit.de/fx.html

1 month ago 4 2 0 0

Lands of Packets

TTL exceeded.

I would like to collect texts from the scene about FX in his memory. A collection of obituaries that will then be posted on phenoelit.de.

If anyone would like to contribute, please contact me.

Mail: joernchen@phenoelit.de
Signal: jrn.07

1 month ago 16 7 0 0

Just ask the Bug Bounty community about their results…

5 months ago 0 0 0 0
Preview
Post by joernchen , @joern@threatactor.club @agarri.fr@bsky.brid.gy add some of these for optimal retro experience

threatactor.club/@joern/statu... :D

7 months ago 2 0 0 0

To reach us you can DM me or contact us via Email at unclear.condition@gmail.com [4/4]

8 months ago 0 0 2 0

The usual processes and medical contact points have failed us unfortunately and he seems stuck in this condition.

We’re based in Berlin, Germany but really any contact with a specialist who would be willing to take on this case we’d be grateful for! [3/4]

8 months ago 0 0 1 0

(myoclonus and/or spasms) to finally find a cause and, above all, an effective therapy. The symptoms are bothering our son ever since he’s born, now for more than nine years, seriously affecting his sleep. [2/4]

8 months ago 0 0 1 0

Today I have a more serious topic than usual, please consider reposting for reach:

My wife and I are urgently looking for a specialist in neuropediatrics or a similar field for our autistic child with a diagnosed, but not further specified, movement disorder [1/4]

8 months ago 4 23 1 0
Post image

I'm sorry folks, the spec made it clear

8 months ago 91 14 5 2
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I am not 🥲

8 months ago 1 0 0 0
OffensiveCon25 - Joernchen - Parser Differentials: When Interpretation Becomes a Vulnerability
OffensiveCon25 - Joernchen - Parser Differentials: When Interpretation Becomes a Vulnerability YouTube video by OffensiveCon

you might find inspiration in joern's recent offensivecon talk. slides are at 0day.click/parser-diff-..., video at www.youtube.com/watch?v=Dq_K...

10 months ago 5 3 2 0
cross functional steakholder: a steak with some kind of metal handle and a screwdriver or so coming out of it

cross functional steakholder: a steak with some kind of metal handle and a screwdriver or so coming out of it

Cross functional steakholder or something, no clue I don’t eat meat…

11 months ago 2 0 0 0
ai generated pic:

password spray in the style of wd-40

ai generated pic: password spray in the style of wd-40

thanks AI

11 months ago 3 0 0 0
Post image

2025 agenda is out!

www.offensivecon.org/agenda/2025....

11 months ago 9 5 0 3
joernchen | OffensiveCon

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.bsky.social in a few weeks.

www.offensivecon.org/speakers/202...

11 months ago 10 1 1 0
joernchen - Friday 13th @ 1°C
joernchen - Friday 13th @ 1°C YouTube video by Tiny Club Berlin

Auf Youtube hab ich auch was :) youtu.be/j_Md8_7mhOU

1 year ago 2 0 0 0
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☺️

1 year ago 1 0 0 0

Felt cute, might delete later

www.instagram.com/p/DIZOJDeMZ8-/

1 year ago 3 0 2 0

Happy Birthday!

1 year ago 1 0 0 0
Silence debugger

A printf("XXX") is talking 

meme

Silence debugger A printf("XXX") is talking meme

1 year ago 6 0 1 0
deepseek-r1:8b fizz buzz | Open WebUI Community

deepsigh for deepseek

openwebui.com/c/jrnjrn/c38...

1 year ago 0 0 0 0

Would you give an LLM control of the nukes if it would stop Donald Trump from taking office and getting it instead?

1 year ago 10 2 2 1

I was just recently pretty impressed by claude solving a few of my CTF challenges with a very simple prompt. :D

1 year ago 0 0 0 0
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joernchen - Friday 13th @ 1°C
joernchen - Friday 13th @ 1°C YouTube video by Tiny Club Berlin

Have a great weekend and enjoy some tunes:

youtu.be/j_Md8_7mhOU

1 year ago 6 3 2 0

What a year, huh?

1 year ago 2 0 0 0
Print issue of Phrack #71

Print issue of Phrack #71

A wild @phrack.org print edition appears 🤩🤩🤩

1 year ago 8 0 0 0

That team that gets beaten up during a CTF. Purple because of the color of their bruises…

1 year ago 3 0 0 0
Me with a Santa hat and a bag which has the CVE logo on it.

Me with a Santa hat and a bag which has the CVE logo on it.

Happy Holidays!

I hope Vulnsanta has some CVE in his bag for you!

1 year ago 6 1 0 0

I don’t know who needs to hear it but

defaults write com.google.Chrome URLBlocklist -array-add example.com

works system-wide without giving access to all your browsing to some extension.

1 year ago 113 15 3 0

huh?

1 year ago 0 0 1 0