Seanie Byrne 🦡
@seaniebyrne.bsky.social
Computer security is more cartography 🗺 than cryptography 🔑 👨🏻💻🇮🇪 ⛵️🛶🥃 Founder. 💼 Previously at @Truework, @Patreon, @Dropbox & @Digg
Interesting, when researching information the Claude app on my iPhone fetched a webpage directly from my phone, then uploaded that page to the Claude API.
October 8, 2026 at 12:00 PM
Interesting, when researching information the Claude app on my iPhone fetched a webpage directly from my phone, then uploaded that page to the Claude API.
Reposted by Seanie Byrne 🦡
"They aren't really shooting at us."
October 2, 2026 at 5:50 PM
"They aren't really shooting at us."
Reposted by Seanie Byrne 🦡
Anthropic may not have intended to write an excellent ad for GLM 5.3, but that's what they did.
www.anthropic.com/research/glm...
Unlike Mythos, I might actually have a chance at using GLM for defensive research. Anthropic didn't reply to any of my requests for Mythos access for use on OpenSSH.
www.anthropic.com/research/glm...
Unlike Mythos, I might actually have a chance at using GLM for defensive research. Anthropic didn't reply to any of my requests for Mythos access for use on OpenSSH.
GLM-5.3 and the spread of advanced cyber capabilities
GLM-5.3 can autonomously build end-to-end cyber exploits, but unlike other frontier models, it was released without meaningful safeguards to limit misuse.
www.anthropic.com
September 30, 2026 at 1:25 AM
Anthropic may not have intended to write an excellent ad for GLM 5.3, but that's what they did.
www.anthropic.com/research/glm...
Unlike Mythos, I might actually have a chance at using GLM for defensive research. Anthropic didn't reply to any of my requests for Mythos access for use on OpenSSH.
www.anthropic.com/research/glm...
Unlike Mythos, I might actually have a chance at using GLM for defensive research. Anthropic didn't reply to any of my requests for Mythos access for use on OpenSSH.
AI Labs TODO:
- I̶n̶v̶e̶n̶t̶ ̶a̶u̶t̶o̶n̶o̶m̶o̶u̶s̶ ̶h̶a̶c̶k̶i̶n̶g̶ ̶m̶a̶c̶h̶i̶n̶e̶
- G̶o̶o̶g̶l̶e̶ ̶"̶s̶a̶n̶d̶b̶o̶x̶i̶n̶g̶"̶
- G̶o̶o̶g̶l̶e̶ ̶"̶s̶c̶o̶p̶e̶d̶ ̶A̶P̶I̶ ̶k̶e̶y̶s̶"̶
- Google "ACLs"
- Google "egress controls"
- Google "Oh Wasps Top 10"
- I̶n̶v̶e̶n̶t̶ ̶a̶u̶t̶o̶n̶o̶m̶o̶u̶s̶ ̶h̶a̶c̶k̶i̶n̶g̶ ̶m̶a̶c̶h̶i̶n̶e̶
- G̶o̶o̶g̶l̶e̶ ̶"̶s̶a̶n̶d̶b̶o̶x̶i̶n̶g̶"̶
- G̶o̶o̶g̶l̶e̶ ̶"̶s̶c̶o̶p̶e̶d̶ ̶A̶P̶I̶ ̶k̶e̶y̶s̶"̶
- Google "ACLs"
- Google "egress controls"
- Google "Oh Wasps Top 10"
September 26, 2026 at 8:21 AM
AI Labs TODO:
- I̶n̶v̶e̶n̶t̶ ̶a̶u̶t̶o̶n̶o̶m̶o̶u̶s̶ ̶h̶a̶c̶k̶i̶n̶g̶ ̶m̶a̶c̶h̶i̶n̶e̶
- G̶o̶o̶g̶l̶e̶ ̶"̶s̶a̶n̶d̶b̶o̶x̶i̶n̶g̶"̶
- G̶o̶o̶g̶l̶e̶ ̶"̶s̶c̶o̶p̶e̶d̶ ̶A̶P̶I̶ ̶k̶e̶y̶s̶"̶
- Google "ACLs"
- Google "egress controls"
- Google "Oh Wasps Top 10"
- I̶n̶v̶e̶n̶t̶ ̶a̶u̶t̶o̶n̶o̶m̶o̶u̶s̶ ̶h̶a̶c̶k̶i̶n̶g̶ ̶m̶a̶c̶h̶i̶n̶e̶
- G̶o̶o̶g̶l̶e̶ ̶"̶s̶a̶n̶d̶b̶o̶x̶i̶n̶g̶"̶
- G̶o̶o̶g̶l̶e̶ ̶"̶s̶c̶o̶p̶e̶d̶ ̶A̶P̶I̶ ̶k̶e̶y̶s̶"̶
- Google "ACLs"
- Google "egress controls"
- Google "Oh Wasps Top 10"
Just opening the Claude desktop app used 4% of my 5 hour quota 🤨
September 23, 2026 at 9:04 AM
Just opening the Claude desktop app used 4% of my 5 hour quota 🤨
It’s so obvious security teams at the big labs have little input or influence. They have some great folks but it’s not showing in their incident/risk reports and public statements.
Philosophers with a tenuous grasp of security are dominating their security discussion and strategy.
Philosophers with a tenuous grasp of security are dominating their security discussion and strategy.
That's, that's not how crossing an air gap works.
Please stop trying to scare people with a scenario involving transmitting a trillion parameter model across an air-gap with a channel that is less than 1 baud. Orders of magnitude less.
Please stop trying to scare people with a scenario involving transmitting a trillion parameter model across an air-gap with a channel that is less than 1 baud. Orders of magnitude less.
September 18, 2026 at 11:07 AM
It’s so obvious security teams at the big labs have little input or influence. They have some great folks but it’s not showing in their incident/risk reports and public statements.
Philosophers with a tenuous grasp of security are dominating their security discussion and strategy.
Philosophers with a tenuous grasp of security are dominating their security discussion and strategy.
You know what we're not seeing, Chinese AI companies models misbehaving and hacking services.
September 13, 2026 at 8:25 PM
You know what we're not seeing, Chinese AI companies models misbehaving and hacking services.
Is there any hope of moving Signal's libsignal from a AGPL license to MIT/Apache @meredithmeredith.bsky.social?
Signal could help bring solid E2EE messaging to far more products. Small and midsize businesses can’t afford a commercial licence, while MLS remains extraordinarily complex to deploy.
Signal could help bring solid E2EE messaging to far more products. Small and midsize businesses can’t afford a commercial licence, while MLS remains extraordinarily complex to deploy.
September 11, 2026 at 11:15 AM
Is there any hope of moving Signal's libsignal from a AGPL license to MIT/Apache @meredithmeredith.bsky.social?
Signal could help bring solid E2EE messaging to far more products. Small and midsize businesses can’t afford a commercial licence, while MLS remains extraordinarily complex to deploy.
Signal could help bring solid E2EE messaging to far more products. Small and midsize businesses can’t afford a commercial licence, while MLS remains extraordinarily complex to deploy.
Reposted by Seanie Byrne 🦡
One month later, caches have run dry in the U.S., the hot war in the Gulf is spreading, and prices at the pump are rapidly rising with diesel at all time highs. There continues to be no sign that any of this will end, and I suspect it continues worsening rapidly in the near term. 1/
September 10, 2026 at 5:20 PM
One month later, caches have run dry in the U.S., the hot war in the Gulf is spreading, and prices at the pump are rapidly rising with diesel at all time highs. There continues to be no sign that any of this will end, and I suspect it continues worsening rapidly in the near term. 1/
Europe is behaving like a fire brigade and Russia is an arsonist. Europe thinks success is putting out the fires. Russia measures success by whether it can keep lighting fires.
Trabalhando Problema
ALT: Trabalhando Problema
static.klipy.com
September 4, 2026 at 12:59 PM
Europe is behaving like a fire brigade and Russia is an arsonist. Europe thinks success is putting out the fires. Russia measures success by whether it can keep lighting fires.
AI alone won’t save your company from AI.
There are going to be some painful & expensive lessons learned over the next 6–12 months. Genuinely innovative AI security products are already being sold, or expected to perform, as silver bullets for problems that require strong foundational security.
There are going to be some painful & expensive lessons learned over the next 6–12 months. Genuinely innovative AI security products are already being sold, or expected to perform, as silver bullets for problems that require strong foundational security.
September 3, 2026 at 8:17 PM
AI alone won’t save your company from AI.
There are going to be some painful & expensive lessons learned over the next 6–12 months. Genuinely innovative AI security products are already being sold, or expected to perform, as silver bullets for problems that require strong foundational security.
There are going to be some painful & expensive lessons learned over the next 6–12 months. Genuinely innovative AI security products are already being sold, or expected to perform, as silver bullets for problems that require strong foundational security.
Accidentally wrote Trail of Buts, instead of @trailofbits.bsky.social 😳🫣😂
August 31, 2026 at 9:31 PM
Accidentally wrote Trail of Buts, instead of @trailofbits.bsky.social 😳🫣😂
BBC’s Russia correspondent Steve Rosenberg's personal YouTube channel continues to be a fantastic watch. Today it includes an interview from 2019 with Gorbachev.
youtu.be/UkxRa1M_x9A?...
youtu.be/UkxRa1M_x9A?...
I read some of the new textbooks for Russian schools
YouTube video by Steve Rosenberg
youtu.be
August 30, 2026 at 4:18 PM
BBC’s Russia correspondent Steve Rosenberg's personal YouTube channel continues to be a fantastic watch. Today it includes an interview from 2019 with Gorbachev.
youtu.be/UkxRa1M_x9A?...
youtu.be/UkxRa1M_x9A?...
2.5 hours and still a little damp. New heat pump dryers are energy efficient in the same way a cat is energy efficient.
August 30, 2026 at 8:54 AM
2.5 hours and still a little damp. New heat pump dryers are energy efficient in the same way a cat is energy efficient.
The next year is going to be incredibly interesting.
August 28, 2026 at 3:06 PM
The next year is going to be incredibly interesting.
I'd say a 20% of my Claude output is Claude apologizing and going into great detail about how it was wrong and how smart I am for correcting it. It's insanely frustrating to use.
I'm getting far more value for my time from ChatGPT and even Proton Lumo is better than Claude right now.
I'm getting far more value for my time from ChatGPT and even Proton Lumo is better than Claude right now.
August 25, 2026 at 9:21 AM
I'd say a 20% of my Claude output is Claude apologizing and going into great detail about how it was wrong and how smart I am for correcting it. It's insanely frustrating to use.
I'm getting far more value for my time from ChatGPT and even Proton Lumo is better than Claude right now.
I'm getting far more value for my time from ChatGPT and even Proton Lumo is better than Claude right now.
Security Trend coming in Q4/Q1:
Employees submitting confidential emails/docs to AI detectors to catch colleague bot usage. Services forward to 3+ AI companies for watermark checks.
Nice way to turn office paranoia into a multi-vendor data leak! 🎉
Employees submitting confidential emails/docs to AI detectors to catch colleague bot usage. Services forward to 3+ AI companies for watermark checks.
Nice way to turn office paranoia into a multi-vendor data leak! 🎉
Happy Reaction to Increasing Chart
ALT: Happy Reaction to Increasing Chart
static.klipy.com
August 18, 2026 at 1:47 PM
Security Trend coming in Q4/Q1:
Employees submitting confidential emails/docs to AI detectors to catch colleague bot usage. Services forward to 3+ AI companies for watermark checks.
Nice way to turn office paranoia into a multi-vendor data leak! 🎉
Employees submitting confidential emails/docs to AI detectors to catch colleague bot usage. Services forward to 3+ AI companies for watermark checks.
Nice way to turn office paranoia into a multi-vendor data leak! 🎉
Reposted by Seanie Byrne 🦡
An absolutely insane story about when U.S. sanctions go wrong and seemingly name the wrong person.
conic.al/writing/the-...
conic.al/writing/the-...
The other Sean Byrne doesn't exist
A fictitious Sean Byrne ended up on a U.S. government restricted-party list. Sixteen years later, Apple, Nasdaq and others have mistaken me for him.
conic.al
August 15, 2026 at 11:38 AM
An absolutely insane story about when U.S. sanctions go wrong and seemingly name the wrong person.
conic.al/writing/the-...
conic.al/writing/the-...
Companies and AI 🤖 are increasingly confusing me with an alias used to sell fighter jet parts to Iran… not great news for my career 😅
conic.al/writing/the-...
conic.al/writing/the-...
The other Sean Byrne doesn't exist
A fictitious Sean Byrne ended up on a U.S. government restricted-party list. Sixteen years later, Apple, Nasdaq and others have mistaken me for him.
conic.al
August 14, 2026 at 4:23 PM
Companies and AI 🤖 are increasingly confusing me with an alias used to sell fighter jet parts to Iran… not great news for my career 😅
conic.al/writing/the-...
conic.al/writing/the-...
Long running “sandboxed” Agents discover and exploit a commonly accessible service and establish a message board to collaborate …i’m shook 💀 it certainly has changed something in my mental model, i’m not sure what yet.
youtu.be/87DyyMV0kCY?...
youtu.be/87DyyMV0kCY?...
Black Hat USA 2026: The 'Breaking' News: The OpenAI–Hugging Face Incident
YouTube video by Black Hat
youtu.be
August 6, 2026 at 10:04 PM
Long running “sandboxed” Agents discover and exploit a commonly accessible service and establish a message board to collaborate …i’m shook 💀 it certainly has changed something in my mental model, i’m not sure what yet.
youtu.be/87DyyMV0kCY?...
youtu.be/87DyyMV0kCY?...
Reposted by Seanie Byrne 🦡
Reposted by Seanie Byrne 🦡
Praise be! Take 35 minutes to enjoy the somebody taking incredible care about making something both very beautiful and utterly ridiculous.
Good morning, there's a new Bobby Fingers www.youtube.com/watch?v=vGt7...
Johnny Depp's Bed
YouTube video by Bobby Fingers
www.youtube.com
August 5, 2026 at 8:03 AM
Praise be! Take 35 minutes to enjoy the somebody taking incredible care about making something both very beautiful and utterly ridiculous.
The issue of 2026 is Apple TV remotes still not having Find My capability.
July 5, 2026 at 7:07 PM
The issue of 2026 is Apple TV remotes still not having Find My capability.