alt.hn

3/2/2026 at 3:53:23 PM

Felix "fx" Lindner has died

 https://blog.recurity-labs.com/2026-03-02/Farewell_Felix

by is_taken

3/2/2026 at 5:52:51 PM

What sad news.

I met FX many years ago during a Black Hat event. At the time, I was working on a class of vulnerabilities related to zip archives. Not only did he know exactly what I was on to, but he was able to articulate the actual issue and explain what was happening behind the scenes and why my exploit was working.

A true legend.

by _pdp_

3/2/2026 at 5:55:55 PM

It's been a long time, but I've always cherished our late night conversations at the Alexis Park. Truly a great hacker. RIP my friend

by nbk_2000

3/2/2026 at 6:52:34 PM

I'm really sad, even if I never met him personally and only knew him from his talks, his software and of course his blog.

I had hoped that after his illness he would be granted some time for personal life and recovery — which makes this news all the more shocking.

by sllabres

3/2/2026 at 8:42:43 PM

FX != fefe

by Deeg9rie9usi

3/2/2026 at 9:13:24 PM

Thanks for the clarification

by sllabres

3/2/2026 at 5:10:59 PM

His excitement and deep interest in things from cisco to web security to life was inspiring.

by pigeons

3/2/2026 at 6:05:25 PM

World got a little darker today. Rip my friend.

by BoredPositron

3/2/2026 at 6:31:11 PM

Reminds me of the Pirates of the Caribbean quote: "The world used to be a bigger place." "The world's still the same. There's just... less in it."

by alexcos

3/2/2026 at 6:58:54 PM

I never really knew felix, but mob says he was a pretty cool guy, and we miss him already.

Thank you felix for everything you did for mob :)

by cc-d

3/2/2026 at 6:48:50 PM

Very sad news to hear. People of his caliber are sorely needed in the community. My condolences to everyone close to fefe.

by a2800276

3/2/2026 at 7:03:06 PM

Fefe is a different person

by pentamassiv

3/2/2026 at 9:31:31 PM

Yes, I mistyped, Freudian slip. And I can't edit or delete anymore. I'm terribly sorry.

by a2800276

3/2/2026 at 7:34:48 PM

Came here to ask the same question / conclusion.

It was thin to find out the differences between the two.

Though, FeFe also suffered some health issues lately, IIRC?

by KellyCriterion

3/2/2026 at 7:39:31 PM

Yeah, he had a stroke. Not many updates, unfortunately.

by davrosthedalek

3/3/2026 at 9:49:45 AM

Aside from feeling sad that he had a stroke, I've been wondering how the infrastructure for his blog keeled over so fast.

by avhception

3/3/2026 at 11:45:56 AM

The blog is fine, it just looks like he didn't foresee that there would be a month where wouldn't post anything, so the navigation links break down. If you go to the last month he posted in, everything works as usual: http://blog.fefe.de/?mon=202505

by TonyTrapp

3/3/2026 at 12:39:41 PM

Oh, just yesterday it failed to load at all!

by avhception

3/3/2026 at 11:16:05 PM

I think the server works, but the ssl cert timed out.

by davrosthedalek

3/2/2026 at 11:41:24 PM

Fefe doesn't capitalise the 2nd F in his name btw.

by eqvinox

3/2/2026 at 6:07:37 PM

While he was a dividing personality with strong opinions, he had his heart in the right place

RIP

by hcbdbdrb

3/2/2026 at 6:57:07 PM

Dividing? Are you sure you are not thinking of fefe, who has a somewhat similar real name?

by TonyTrapp

3/2/2026 at 5:19:41 PM

A true hero and legend. RIP.

by c0l0

3/2/2026 at 7:57:48 PM

Sad news. I wonder if his projects (e.g. dietlibc) will continue development or not...

by GabrielTFS

3/2/2026 at 8:03:27 PM

fefe = Felix von Leitner

fx = Felix Lindner

Please don't mix up the names and nicknames.

Both are highly renowned security experts.

by NoiseBert69

3/2/2026 at 8:00:03 PM

The dietlibc author is a different person but with a very similar name.

by nwellnhof

3/2/2026 at 7:59:08 PM

FX != fefe

by Deeg9rie9usi

3/2/2026 at 8:49:25 PM

Sad news.

by kan0r

3/2/2026 at 6:45:59 PM

fuck

by krater23

3/2/2026 at 7:03:11 PM

fugg

by cc-d

3/2/2026 at 7:35:15 PM

vakk

by KellyCriterion

3/2/2026 at 6:30:36 PM

He was a good hacker but also a HUGE, arrogant jerk who treated a lot of people quite badly.

by ephou7

3/2/2026 at 7:32:44 PM

What do you mean by this?

Are you sure it was him? And not an external, perhaps undocumented and extremely illegal, system affecting his actions and behaviour?

by cc-d