Péter Szilágyi
@karalabe.bsky.social
Founder @dark.bio
Former Go Ethereum Lead (2015-2025)
Former Go Ethereum Lead (2015-2025)
Installed OpenAI Codex 20 minutes ago. In the *first* thread:
February 15, 2026 at 4:37 PM
Installed OpenAI Codex 20 minutes ago. In the *first* thread:
Have a wild Sunday idea to geek out with AI.
Multiple people used Claude/Codex to reverse engineer a game (banteg did Crimsonland and ccccjjjjeeee did SimCity). Point proven. Let's up the difficulty.
Lets see if AI can split open a proprietary radio protocol! Starting now 😅
Multiple people used Claude/Codex to reverse engineer a game (banteg did Crimsonland and ccccjjjjeeee did SimCity). Point proven. Let's up the difficulty.
Lets see if AI can split open a proprietary radio protocol! Starting now 😅
February 14, 2026 at 8:23 PM
Have a wild Sunday idea to geek out with AI.
Multiple people used Claude/Codex to reverse engineer a game (banteg did Crimsonland and ccccjjjjeeee did SimCity). Point proven. Let's up the difficulty.
Lets see if AI can split open a proprietary radio protocol! Starting now 😅
Multiple people used Claude/Codex to reverse engineer a game (banteg did Crimsonland and ccccjjjjeeee did SimCity). Point proven. Let's up the difficulty.
Lets see if AI can split open a proprietary radio protocol! Starting now 😅
It’s just baffling to see the OpenClaw author acknowledge how insecure his AI agents are, but then just hand-wave it away with “it’s industrywide unsolved”. Like, holy shit, that is specifically the reason nobody released such a thing until now.
x.com/steipete/sta...
x.com/steipete/sta...
x.com
February 13, 2026 at 9:23 PM
It’s just baffling to see the OpenClaw author acknowledge how insecure his AI agents are, but then just hand-wave it away with “it’s industrywide unsolved”. Like, holy shit, that is specifically the reason nobody released such a thing until now.
x.com/steipete/sta...
x.com/steipete/sta...
Started working on this right after Christmas. As any senior software engineer, my two wook™ estimate was spot on... 😅
But it's out of my system now and Dark Bio is fully quantum secure (I know, famous last words)! 🥳
But it's out of my system now and Dark Bio is fully quantum secure (I know, famous last words)! 🥳
February 13, 2026 at 7:04 AM
Started working on this right after Christmas. As any senior software engineer, my two wook™ estimate was spot on... 😅
But it's out of my system now and Dark Bio is fully quantum secure (I know, famous last words)! 🥳
But it's out of my system now and Dark Bio is fully quantum secure (I know, famous last words)! 🥳
Who needs a data engineer when you have AI 😅
February 12, 2026 at 9:02 AM
Who needs a data engineer when you have AI 😅
Told Opus 4.6 to scan my crypto libs and find security vulns. It reported mostly false positives.
But it also found a cute crasher in CBOR decoding. Malicious inputs could trigger a stack overflow in my Rust code. +1 for Claude :)
But it also found a cute crasher in CBOR decoding. Malicious inputs could trigger a stack overflow in my Rust code. +1 for Claude :)
cbor: limit nesting depth to avoid stack overflows on parse · dark-bio/crypto-rs@5169ced
github.com
February 11, 2026 at 8:52 AM
Told Opus 4.6 to scan my crypto libs and find security vulns. It reported mostly false positives.
But it also found a cute crasher in CBOR decoding. Malicious inputs could trigger a stack overflow in my Rust code. +1 for Claude :)
But it also found a cute crasher in CBOR decoding. Malicious inputs could trigger a stack overflow in my Rust code. +1 for Claude :)
Yesterday I’ve found a nifty vulnerability in LLM agents.
Put the best in class model from OpenAI to protect something.
Then you grind it in parallel. Say you can’t get through. But the grinding hits your API call limits and OpenAI downgrades your model.
Boom, you’re in. 🫠
Put the best in class model from OpenAI to protect something.
Then you grind it in parallel. Say you can’t get through. But the grinding hits your API call limits and OpenAI downgrades your model.
Boom, you’re in. 🫠
February 10, 2026 at 9:02 PM
Yesterday I’ve found a nifty vulnerability in LLM agents.
Put the best in class model from OpenAI to protect something.
Then you grind it in parallel. Say you can’t get through. But the grinding hits your API call limits and OpenAI downgrades your model.
Boom, you’re in. 🫠
Put the best in class model from OpenAI to protect something.
Then you grind it in parallel. Say you can’t get through. But the grinding hits your API call limits and OpenAI downgrades your model.
Boom, you’re in. 🫠
Reposted by Péter Szilágyi
This is why we build privacy tech.
Leaky LLMs: Accident or Nature?
How LLMs are by-design incapable of retaining secrets
blog.dark.bio
February 10, 2026 at 9:16 AM
This is why we build privacy tech.
Leaky LLMs: Accident or Nature?
I've just published a new blog post about an LLM data exfiltration challenge; and how I got to side channel, jailbreak and extract the secret the LLM was meant to protect.
Definitely not what I woke up to do today 😅 Shoutout to Ech0 for organising the challenge.
I've just published a new blog post about an LLM data exfiltration challenge; and how I got to side channel, jailbreak and extract the secret the LLM was meant to protect.
Definitely not what I woke up to do today 😅 Shoutout to Ech0 for organising the challenge.
Leaky LLMs: Accident or Nature?
How LLMs are by-design incapable of retaining secrets
blog.dark.bio
February 9, 2026 at 10:13 PM
Leaky LLMs: Accident or Nature?
I've just published a new blog post about an LLM data exfiltration challenge; and how I got to side channel, jailbreak and extract the secret the LLM was meant to protect.
Definitely not what I woke up to do today 😅 Shoutout to Ech0 for organising the challenge.
I've just published a new blog post about an LLM data exfiltration challenge; and how I got to side channel, jailbreak and extract the secret the LLM was meant to protect.
Definitely not what I woke up to do today 😅 Shoutout to Ech0 for organising the challenge.
A friend shared this today. It's effin long at 90 mins, but I think it's a very nice video. It discusses generative AI in the music industry, which may or may not be up your alley, but I think it's worth a watch even just for the philosophical aspects.
Suno, AI Music, and the Bad Future
YouTube video by Adam Neely
www.youtube.com
February 8, 2026 at 10:47 AM
A friend shared this today. It's effin long at 90 mins, but I think it's a very nice video. It discusses generative AI in the music industry, which may or may not be up your alley, but I think it's worth a watch even just for the philosophical aspects.
I would like to shout out to the Parkside engineers for their careful and responsible implementation of USB-C standards.
I think this is what the industry would call a “fire hazard”.
I think this is what the industry would call a “fire hazard”.
February 2, 2026 at 3:23 PM
I would like to shout out to the Parkside engineers for their careful and responsible implementation of USB-C standards.
I think this is what the industry would call a “fire hazard”.
I think this is what the industry would call a “fire hazard”.
I wanted to design an over-voltage protection mechanism for the Arks. Picked out the components, but didn't want to design the wiring schema manually.
Asked ChatGPT to do it. Ugh, tons of text, extra components, etc. Probably works, but so hard to digest.
Asked Gemini... damn🤯
Asked ChatGPT to do it. Ugh, tons of text, extra components, etc. Probably works, but so hard to digest.
Asked Gemini... damn🤯
February 1, 2026 at 7:17 PM
I wanted to design an over-voltage protection mechanism for the Arks. Picked out the components, but didn't want to design the wiring schema manually.
Asked ChatGPT to do it. Ugh, tons of text, extra components, etc. Probably works, but so hard to digest.
Asked Gemini... damn🤯
Asked ChatGPT to do it. Ugh, tons of text, extra components, etc. Probably works, but so hard to digest.
Asked Gemini... damn🤯
My goal with the Dark Bio Ark was to protect sensitive data from unintended access… but seems with all the AI agent crap everyone is doing, that “Ark” name starts to be a premonition instead of an accidental choice. 🥲
January 31, 2026 at 11:15 AM
My goal with the Dark Bio Ark was to protect sensitive data from unintended access… but seems with all the AI agent crap everyone is doing, that “Ark” name starts to be a premonition instead of an accidental choice. 🥲
"We didn't do it because it was easy. We did it because we thought it would be easy."
Pre-quantum cryptography removed from the Dark Bio Ark firmware (apart of secure boot, can't change the chip) 😎
Pre-quantum cryptography removed from the Dark Bio Ark firmware (apart of secure boot, can't change the chip) 😎
January 30, 2026 at 4:05 PM
"We didn't do it because it was easy. We did it because we thought it would be easy."
Pre-quantum cryptography removed from the Dark Bio Ark firmware (apart of secure boot, can't change the chip) 😎
Pre-quantum cryptography removed from the Dark Bio Ark firmware (apart of secure boot, can't change the chip) 😎
Proof of concept Dark Bio login page. I mean, it works, just wondering if I geeked out too hard on this one... 😋
You need to view it high res, otherwise the details will get lost.
You need to view it high res, otherwise the details will get lost.
January 28, 2026 at 10:16 PM
Proof of concept Dark Bio login page. I mean, it works, just wondering if I geeked out too hard on this one... 😋
You need to view it high res, otherwise the details will get lost.
You need to view it high res, otherwise the details will get lost.
You have no excuse any more for not using post-quantum cryptography. I have you covered on desktop, cloud, mobile and web. 🤓 #rust #golang #flutter #typescript
January 27, 2026 at 3:03 PM
You have no excuse any more for not using post-quantum cryptography. I have you covered on desktop, cloud, mobile and web. 🤓 #rust #golang #flutter #typescript
I think I need an intervention...
January 27, 2026 at 1:40 PM
I think I need an intervention...
Seems I have a new post-quantum toy ;) Any guesses?
January 23, 2026 at 9:20 PM
Seems I have a new post-quantum toy ;) Any guesses?
I've enabled Ad supported mode in AmpCode. Took me literally 30 seconds to disable it back out and rather pay.
It changes ads right above your text box every 10-15 seconds. It's impossible to concentrate on your trail of thought with the thing constantly popping. Screw that.
It changes ads right above your text box every 10-15 seconds. It's impossible to concentrate on your trail of thought with the thing constantly popping. Screw that.
January 23, 2026 at 10:37 AM
I've enabled Ad supported mode in AmpCode. Took me literally 30 seconds to disable it back out and rather pay.
It changes ads right above your text box every 10-15 seconds. It's impossible to concentrate on your trail of thought with the thing constantly popping. Screw that.
It changes ads right above your text box every 10-15 seconds. It's impossible to concentrate on your trail of thought with the thing constantly popping. Screw that.
Happy to announce that I've finally published / tagged the Dark Bio post-quantum cryptography packages for both #rust and #golang.
I'm certain there will be tiny tweaks here and there, but I'll try to commit to semantic versioning going forward (within v0 expectations!).
Njoy 🤓
I'm certain there will be tiny tweaks here and there, but I'll try to commit to semantic versioning going forward (within v0 expectations!).
Njoy 🤓
January 22, 2026 at 2:09 PM
Hey @cloudflare.social, can I have a feature request? (I opened a ticket, nobody answered ¯\_(ツ)_/¯).
Since we're entering a post-quantum world. Could we have some limits raised globally? Env var sizes from 4KB to 8KB. WS attachments from 2KB to 4KB.
Why? To fit PQ certs and pubkeys.
Since we're entering a post-quantum world. Could we have some limits raised globally? Env var sizes from 4KB to 8KB. WS attachments from 2KB to 4KB.
Why? To fit PQ certs and pubkeys.
January 22, 2026 at 9:10 AM
Hey @cloudflare.social, can I have a feature request? (I opened a ticket, nobody answered ¯\_(ツ)_/¯).
Since we're entering a post-quantum world. Could we have some limits raised globally? Env var sizes from 4KB to 8KB. WS attachments from 2KB to 4KB.
Why? To fit PQ certs and pubkeys.
Since we're entering a post-quantum world. Could we have some limits raised globally? Env var sizes from 4KB to 8KB. WS attachments from 2KB to 4KB.
Why? To fit PQ certs and pubkeys.
January 19, 2026 at 8:43 PM
Nobody: How many keys do you need?
Me: Yes.
Me: Yes.
January 16, 2026 at 7:44 PM
Nobody: How many keys do you need?
Me: Yes.
Me: Yes.