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Alan Karp
, …
Matt Rice
5
Sep 25
Claude Code recommends blocking delegation
On Thu, Sep 24, 2026 at 4:03 PM Alan Karp <alan...@gmail.com> wrote: > > A guy I know
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Claude Code recommends blocking delegation
On Thu, Sep 24, 2026 at 4:03 PM Alan Karp <alan...@gmail.com> wrote: > > A guy I know
Sep 25
Alan Karp
Sep 21
Fwd: [security-lunch] (Sep 23) "Microarchitecture and (Trying to) Secure Software" (David Kohlbrenner)
-------------- Alan Karp ---------- Forwarded message --------- From: Ihyun Nam via security-lunch
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Fwd: [security-lunch] (Sep 23) "Microarchitecture and (Trying to) Secure Software" (David Kohlbrenner)
-------------- Alan Karp ---------- Forwarded message --------- From: Ihyun Nam via security-lunch
Sep 21
William ML Leslie
Sep 20
No linux distro will ever be truly secure
Found this in the wild, includes reference to SculptOS! https://www.howtogeek.com/why-no-linux-distro
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No linux distro will ever be truly secure
Found this in the wild, includes reference to SculptOS! https://www.howtogeek.com/why-no-linux-distro
Sep 20
Alan Karp
,
Alex Vincent
2
Sep 19
A very weird talk about a 75 cent discrepancy
When you said "75 discrepancy", I knew exactly what you were talking about. I have his book
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A very weird talk about a 75 cent discrepancy
When you said "75 discrepancy", I knew exactly what you were talking about. I have his book
Sep 19
Alan Karp
, …
Matt Rice
5
Sep 18
Designating the resource
On Fri, Sep 18, 2026 at 4:58 PM ๏̯͡๏ Jasvir Nagra <j...@nagras.com> wrote: > > In practice
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Designating the resource
On Fri, Sep 18, 2026 at 4:58 PM ๏̯͡๏ Jasvir Nagra <j...@nagras.com> wrote: > > In practice
Sep 18
Alan Karp
, …
Raoul Duke
16
Sep 17
Intent as permissions
> The resulting guarantee is not ideal but still useful: the agent will stay within the authority
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Intent as permissions
> The resulting guarantee is not ideal but still useful: the agent will stay within the authority
Sep 17
Douglas Crockford
Sep 17
Those scary agents
This is a retelling of the scary agents story from a WindowsOS guy. The story includes many confused
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Those scary agents
This is a retelling of the scary agents story from a WindowsOS guy. The story includes many confused
Sep 17
Alan Karp
Sep 14
Fwd: [security-lunch] (Sep 16) "Pirateship: Append-Only Ledgers for (Mostly) Trusted Execution Environments" (Shubham Mishra)
-------------- Alan Karp ---------- Forwarded message --------- From: Ihyun Nam via security-lunch
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Fwd: [security-lunch] (Sep 16) "Pirateship: Append-Only Ledgers for (Mostly) Trusted Execution Environments" (Shubham Mishra)
-------------- Alan Karp ---------- Forwarded message --------- From: Ihyun Nam via security-lunch
Sep 14
Alan Karp
, …
Chris Hibbert
3
Sep 10
Merging capabilities
On 9/8/26 4:45 PM, Alan Karp wrote: > Say that Dave has a service that takes a read/write
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Merging capabilities
On 9/8/26 4:45 PM, Alan Karp wrote: > Say that Dave has a service that takes a read/write
Sep 10
Pierre Thierry
, …
Matt Rice
17
Sep 8
Dual of "make invalid states unrepresentable"
Yes, this is the set-to-null pattern Pierre was referring to. The one I posted the type signature for
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Dual of "make invalid states unrepresentable"
Yes, this is the set-to-null pattern Pierre was referring to. The one I posted the type signature for
Sep 8
Alan Karp
, …
Matt Rice
66
Sep 8
Assigning responsibility
On Tue, Sep 8, 2026 at 5:35 PM Matt Rice <rat...@gmail.com> wrote: Sure, if Bob is basically a
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Assigning responsibility
On Tue, Sep 8, 2026 at 5:35 PM Matt Rice <rat...@gmail.com> wrote: Sure, if Bob is basically a
Sep 8
Alan Karp
Sep 7
Fwd: [security-lunch] (Sep 9) "Beyond Prompt Injection: Agentic AI Attacks in the Real World" (Adrian Spanu, Thomas Shadwell)
-------------- Alan Karp ---------- Forwarded message --------- From: Ihyun Nam via security-lunch
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Fwd: [security-lunch] (Sep 9) "Beyond Prompt Injection: Agentic AI Attacks in the Real World" (Adrian Spanu, Thomas Shadwell)
-------------- Alan Karp ---------- Forwarded message --------- From: Ihyun Nam via security-lunch
Sep 7
Vinícius dos Santos Oliveira
, …
Rob Meijer
9
Sep 7
Bluefin is a capability system
Linux can come pretty close with MAC and FUSE. It's old, but here is a Linux Journal article I
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Bluefin is a capability system
Linux can come pretty close with MAC and FUSE. It's old, but here is a Linux Journal article I
Sep 7
Pierre Thierry
Sep 5
The Roc language is considering capability-security
Hi all, I started discussing capabilities after a video of Richard Feldman where he discussed a way
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The Roc language is considering capability-security
Hi all, I started discussing capabilities after a video of Richard Feldman where he discussed a way
Sep 5
Alan Karp
Sep 3
Likely topic for tomorrow.
Ken HamerHodges mentioned that he'd like to present his Church Machine work. I've invited him
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Likely topic for tomorrow.
Ken HamerHodges mentioned that he'd like to present his Church Machine work. I've invited him
Sep 3
Alan Karp
,
Mark S. Miller
3
Sep 2
A common omission
It's not that you can't invoke. It's that the spec doesn't say how you invoke.
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A common omission
It's not that you can't invoke. It's that the spec doesn't say how you invoke.
Sep 2
William ML Leslie
, …
Matt Rice
4
Sep 2
A new word to bikeshed: Sandboxing.
On Thu, 3 Sept 2026 at 09:28, Matt Rice <rat...@gmail.com> wrote: "We note that the term
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A new word to bikeshed: Sandboxing.
On Thu, 3 Sept 2026 at 09:28, Matt Rice <rat...@gmail.com> wrote: "We note that the term
Sep 2
Jonathan Shapiro
,
Mark S. Miller
2
Sep 2
Quick Q's on Pluribus/Smart Contracts
On Sat, Aug 29, 2026 at 11:39 AM Jonathan Shapiro <jonathan....@gmail.com> wrote: Looking
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Quick Q's on Pluribus/Smart Contracts
On Sat, Aug 29, 2026 at 11:39 AM Jonathan Shapiro <jonathan....@gmail.com> wrote: Looking
Sep 2
Pierre Thierry
, …
๏̯͡๏ Jasvir Nagra
24
Sep 1
Bearer URIs RFC
Having skimmed it, i do but it requires universal enforcement or at least detection. I am ok reusing
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Bearer URIs RFC
Having skimmed it, i do but it requires universal enforcement or at least detection. I am ok reusing
Sep 1
Alan Karp
Aug 31
Fwd: [security-lunch] (Sep 2) Tianyin Xu on "Software Correctness Made Scalable"
-------------- Alan Karp ---------- Forwarded message --------- From: Ihyun Nam via security-lunch
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Fwd: [security-lunch] (Sep 2) Tianyin Xu on "Software Correctness Made Scalable"
-------------- Alan Karp ---------- Forwarded message --------- From: Ihyun Nam via security-lunch
Aug 31
Alan Karp
Aug 30
If you're interested in the history of computing
https://www.youtube.com/watch?v=hpj6r6CjJf8&t=1s I planned to watch the first 10-15 minutes, but
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If you're interested in the history of computing
https://www.youtube.com/watch?v=hpj6r6CjJf8&t=1s I planned to watch the first 10-15 minutes, but
Aug 30
Alan Karp
, …
William ML Leslie
164
Aug 25
Designating the resource with certificate capabilities
On Tue, Aug 25, 2026 at 5:58 PM William ML Leslie <william.l...@gmail.com> wrote: I don
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Designating the resource with certificate capabilities
On Tue, Aug 25, 2026 at 5:58 PM William ML Leslie <william.l...@gmail.com> wrote: I don
Aug 25
Alan Karp
Aug 24
Fwd: [security-lunch] Aug 26 | Alain Tchana on "GoodKit: Practical and Scalable Live Virtual Machine Introspection"
-------------- Alan Karp ---------- Forwarded message --------- From: Michael Leo Paper via security-
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Fwd: [security-lunch] Aug 26 | Alain Tchana on "GoodKit: Practical and Scalable Live Virtual Machine Introspection"
-------------- Alan Karp ---------- Forwarded message --------- From: Michael Leo Paper via security-
Aug 24
Alan Karp
, …
William ML Leslie
8
Aug 23
Relevant to today's discussion. (I only read the title!)
On Sat, 22 Aug 2026 at 06:59, Alan Karp <alan...@gmail.com> wrote: https://c3-lang.org/blog/
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Relevant to today's discussion. (I only read the title!)
On Sat, 22 Aug 2026 at 06:59, Alan Karp <alan...@gmail.com> wrote: https://c3-lang.org/blog/
Aug 23
Alan Karp
Aug 17
Fwd: [security-lunch] Aug 19 | Guilhem Niot on "Migrating Protocols to the Post-Quantum Setting: The Case of WireGuard"
-------------- Alan Karp ---------- Forwarded message --------- From: Michael Leo Paper via security-
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Fwd: [security-lunch] Aug 19 | Guilhem Niot on "Migrating Protocols to the Post-Quantum Setting: The Case of WireGuard"
-------------- Alan Karp ---------- Forwarded message --------- From: Michael Leo Paper via security-
Aug 17
Vinícius dos Santos Oliveira
,
William ML Leslie
2
Aug 14
Adopting Memory-Safety and Fine-Grained Compartmentalisation with CHERI
On Fri, 14 Aug 2026 at 03:57, Vinícius dos Santos Oliveira <vini.i...@gmail.com> wrote:
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Adopting Memory-Safety and Fine-Grained Compartmentalisation with CHERI
On Fri, 14 Aug 2026 at 03:57, Vinícius dos Santos Oliveira <vini.i...@gmail.com> wrote:
Aug 14
Alan Karp
, …
William ML Leslie
19
Aug 14
Permission/authority
Et tu, Brute! :D -- William ML Leslie Never interrupt the enemy when they're pivoting to AI.
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Permission/authority
Et tu, Brute! :D -- William ML Leslie Never interrupt the enemy when they're pivoting to AI.
Aug 14
Alan Karp
, …
Vinícius dos Santos Oliveira
8
Aug 13
Anyone aware of this project?
Em qua., 12 de ago. de 2026 às 17:51, Alan Karp <alan...@gmail.com> escreveu: > I've
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Anyone aware of this project?
Em qua., 12 de ago. de 2026 às 17:51, Alan Karp <alan...@gmail.com> escreveu: > I've
Aug 13
Alan Karp
,
Mark S. Miller
3
Aug 10
Fwd: [security-lunch] [LOCATION CHANGE: GATES 403] Aug 12 | Lightning ⚡️ talks
They're not recorded, but you can get an idea of what I'll say from https://www.linkedin.com/
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Fwd: [security-lunch] [LOCATION CHANGE: GATES 403] Aug 12 | Lightning ⚡️ talks
They're not recorded, but you can get an idea of what I'll say from https://www.linkedin.com/
Aug 10
Alan Karp
Aug 3
Fwd: [security-lunch] [ANNOUNCEMENT] Lightning talks on August 12! Come and present something
-------------- Alan Karp ---------- Forwarded message --------- From: Michael Leo Paper via security-
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Fwd: [security-lunch] [ANNOUNCEMENT] Lightning talks on August 12! Come and present something
-------------- Alan Karp ---------- Forwarded message --------- From: Michael Leo Paper via security-
Aug 3