Discovering cryptographic weaknesses with Claude
Quoting Akshat Bubna
We’re aware a Modal customer published an unauthenticated endpoint that allowed anyone on the internet to use their sandboxes for code execution. This was used by the rogue agent. Modal’s platform or isolation were not compromised in anyway.
— Akshat Bubna, Modal's CTO, talking to Reuters about this incident
Tags: ai-security-research, openai, sandboxing, security, openai-hugging-face-incident
uv 0.12.0
Anatomy of a Frontier Lab Agent Intrusion: A Technical Timeline of the July 2026 Incident
When The Future Doesn’t Need Us
What does the world look like when AI outcompetes humans?
Marcus on AI
• Gary Marcus
Sorry, Sam and Elon, we have not reached the Singularity
Not that anyone even knows what that means.
DYNOMIGHT
• dynomight
Does every question mark deserve a Betteridge?
An essay that may or may not reach a firm conclusion
John D. Cook
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Inverse factorial improved
A couple years ago I wrote about how to compute the inverse of factorial. I used that code in writing the previous post because the post required solving the equation ⌊log2(n!)⌋ = b given b. That is, given a number of bits b, find the smallest value of n such that n! > 2b. What the […]
The post Inverse factorial improved first appeared on John D. Cook.The inliner is yielding benefits for ZJIT
Simone Salis
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The Photographer Who Takes No Pictures
How a trip in 2012 transformed my relationship with photography—from staged performances to capturing genuine moments that matter, for engagement rather than validation.
John D. Cook
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Cryptographic Keys and Decks of Cards
The previous post looked at the idea of storing a cryptographic key in the order of a deck of cards. A deck of 52 cards can store 225 bits of data because ⌊log2(52!)⌋ = 225. Here ⌊x⌋ is x rounded down to the nearest integer. If we want to store bigger keys, we’re going to need […]
The post Cryptographic Keys and Decks of Cards first appeared on John D. Cook.
Andrew Nesbitt
• Andrew Nesbitt
Why npm Dependency Trees Are So Big
Two versions of lodash walk into a tree
Terence Eden’s Blog
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Google Calendar "Unable to launch event" - caused by missing DTSTAMP
For several years, Google's product help forums have been littered with people trying to download a .ics event from their email, only to receive the error "Unable to launch event" when trying to add it to Google Calendar. It doesn't happen with all iCal attachments, only some. Here's how to fix it. I checked dozens of broken iCalendar invites using this iCal validator and they all had the same …
The Silicon Underground
• Dave Farquhar
IBM PS/2 E: The first Energy Star computer
On June 29, 1993, IBM released the first energy star computer, the IBM PS/2 E. The “E” stood for energy. But while it was undeniably more efficient than other desktop PCs, arguably it was a PS/2 in name only. To
The post IBM PS/2 E: The first Energy Star computer appeared first on The Silicon Underground.
Pluralistic: Daily links from Cory Doctorow
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Pluralistic: Discernment (28 Jul 2026)
The real AI risk is inside the labs
moonshotai/Kimi-K3
John D. Cook
• John
Hiding data in permutations
The latest issue of Paged Out! has an article by Stephen Hewitt “An off-line backup of your cryptographic key using playing cards.” The idea is to use a deck of 52 to store a 128-bit cryptographic key. To erase the key, shuffle the deck. Hewitt gives his algorithm for embedding a key, one that can […]
The post Hiding data in permutations first appeared on John D. Cook.