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Apple Patches 87 Vulnerabilities in iOS, 155 in macOS Tahoe
Apple announced that dozens of vulnerabilities have been patched in each of its operating systems.
The post Apple Patches 87 Vulnerabilities in iOS, 155 in macOS Tahoe appeared first on SecurityWeek.
Show HN: Formally verified 3D CSG: Trust 93 lines spec, not 1000 lines AI code
To my knowledge, this is the first formally verified implementation of a 3D constructive solid geometry (CSG) operation: mesh intersection, implemented in Lean 4 and verified against a concise specification that pins down the surface of the resulting mesh exactly and guarantees practical well-formedness conditions on the triangulation.
This project is also an experiment in avoiding having to trust AI-generated code. A human reviewer only needs to read 93 lines of formal specification and run the Lean checker to certify the correctness of the kernel, skipping the intricate 1000+ lines of AI-written implementation. To prove correctness, AI autonomously wrote over 60,000 lines of Lean proofs, which also never have to be inspected by a human. The Lean checker guarantees conformance to the specification at compile time, with zero trust placed in any LLM. This allows us to treat the implementation and proofs as a black box. I guided the agent through the milestones described in the readme to arrive at the result presented here.
Also take a look at the web demo https://schildep.github.io/verified-3d-mesh-intersection/, which runs the verified mesh intersection kernel compiled to WebAssembly in your browser.
Comments URL: https://news.ycombinator.com/item?id=49083239
Points: 1
# Comments: 0
Securing the Future of AI Agents
Article URL: https://deepmind.google/blog/securing-the-future-of-ai-agents/
Comments URL: https://news.ycombinator.com/item?id=49083222
Points: 1
# Comments: 0
OT Security Startup Frenos Raises $1.52 Million
The company will use the fresh investment to grow its customer success and AI R&D teams.
The post OT Security Startup Frenos Raises $1.52 Million appeared first on SecurityWeek.
The First Idempotency Key
Article URL: https://hatchet.run/blog/first-idempotency-key
Comments URL: https://news.ycombinator.com/item?id=49083207
Points: 1
# Comments: 0
Tenir: A Counter-Pressure Architecture for Safe Agentic AI Under Irreversibly
Article URL: https://zenodo.org/records/21277138
Comments URL: https://news.ycombinator.com/item?id=49083198
Points: 1
# Comments: 0
Private Claude Chats Exposed in Google and Bing Search Results
Article URL: https://www.wired.com/story/private-claude-chats-exposed-in-google-and-bing-search-results/
Comments URL: https://news.ycombinator.com/item?id=49083197
Points: 1
# Comments: 0
I got tired of router appliance limitations, so I moved my home network to OVN
Article URL: https://mabels.github.io/ovn-fabric/blog/ovn-fabric-writeup.html
Comments URL: https://news.ycombinator.com/item?id=49083187
Points: 1
# Comments: 0
OptMem – Permanent memory for AI agents
Article URL: https://github.com/VictorTaelin/OptMem
Comments URL: https://news.ycombinator.com/item?id=49083167
Points: 1
# Comments: 0
Valimail Alternative
Article URL: https://dmarcguard.io/blog/valimail-alternative/
Comments URL: https://news.ycombinator.com/item?id=49083159
Points: 1
# Comments: 0
Adaptive speculative decoding on a $300 GPU
Article URL: https://github.com/Gogo27Gallet/Fronde
Comments URL: https://news.ycombinator.com/item?id=49083155
Points: 1
# Comments: 0
There are no fire alarms when it comes to privacy
Article URL: https://www.unsungnovelty.org/posts/07/2026/fire-alarms-privacy/
Comments URL: https://news.ycombinator.com/item?id=49083149
Points: 1
# Comments: 0
Turtle-inspired interactive Python project
Article URL: https://www.codembark.com/projects/fv20lz9map/spider-web-drawing
Comments URL: https://news.ycombinator.com/item?id=49083146
Points: 1
# Comments: 0
Show HN: Cosmos47, a public chronological feed without algorithms
I’ve worked as a B2C product manager and co-founded two social-media-related startups (one acquired and one closed down), but I was never particularly good at conventional social networking. I don’t enjoy cultivating followers, optimizing for engagement, or wondering how a post will perform.
Yet sometimes I want to share something and I want people to get a reasonable chance of finding it. Sure, I can start a blog or an X account (which obviously I have) but when I post something, usually nobody sees it or interacts with it.
So... I've built Cosmos47 - a public social feed that shows all posts chronologically. One feed that appears the same to all users, from all over the world. No algorithm or ranking people by popularity.
All posts are analyzed with AI and each post gets tagged with its language, topics, tone, format, length, location, and other characteristics. Readers can then filter the feed themselves (if they wish). The idea is distribution through relevance rather than popularity.
Full Disclosure The entire website was built using AI tools, including the frontend, backend, and much of the work required to make a client-rendered app accessible to search engines. The main platform was Base44, but I've used their MCP (with ChatGPT 5.6 Sol) and added a Cloudflare layer that returns crawler-readable public pages, metadata and sitemaps.
It’s still an early experiment. Most of the content currently on the platform is actually AI slop test content that I created to test multilingual feeds, filtering, moderation, embeds, search and indexing. I’m not trying to present this as an existing community and my next challenge is to attract real people who genuinely want to try it out.
I’d appreciate any feedback you want to share!
Comments URL: https://news.ycombinator.com/item?id=49083145
Points: 1
# Comments: 0
AWS Secrets Manager Terraform: Least-Privilege Access
Article URL: https://blog.victorsilva.com.uy/aws-secrets-manager-terraform-least-privilege/
Comments URL: https://news.ycombinator.com/item?id=49083141
Points: 1
# Comments: 0
Using AI for Automated Tasks
Article URL: https://visualgui.com/2026/07/28/using-ai-for-automated-tasks/
Comments URL: https://news.ycombinator.com/item?id=49083134
Points: 1
# Comments: 0
What AI developers could learn from Charles Bukowski?
Article URL: https://galjot.si/what-ai-developers-could-learn-from-charles-bukowski
Comments URL: https://news.ycombinator.com/item?id=49083132
Points: 2
# Comments: 0
Show HN: SpecShield – Contract testing and can-I-deploy gates for OpenAPI
Article URL: https://specshield.io/
Comments URL: https://news.ycombinator.com/item?id=49083129
Points: 1
# Comments: 0
Hister v0.17.0
Article URL: https://github.com/asciimoo/hister/releases/tag/v0.17.0
Comments URL: https://news.ycombinator.com/item?id=49083110
Points: 2
# Comments: 0
AI meets Cryptography 3: What AI Found in Bron Labs's bron-crypto
Article URL: https://blog.zksecurity.xyz/posts/bron-bugs/
Comments URL: https://news.ycombinator.com/item?id=49083100
Points: 1
# Comments: 0
