Joshua Saxe
Machine learning, cyber security, social science, philosophy, classical/jazz piano. Currently at Meta working at the intersection of Llama and cybersecurity
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 35 | Founded | 2 years ago | Last Issue | 4 days ago |
| Active | |||||
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joshuasaxe181906.substack.comLatest Issues
Everyone’s talking past each other about the OpenAI/Huggingface hack so here’s a synthesized view
Alignment, security, AI engineering, and policy folks come from very different points of view, so many of the reactions to the OpenAI Huggingface hack have revealed more about the speaker’s focus than they did about an overall strategy for...
Where are all the prompt injection damages?
I spent much of 2023-2026 obsessed with prompt injection as a novel exploit vector, breathlessly evangelizing about the exposures we were creating across Meta, asking for resources, and then helping build tech like LlamaFirewall and PromptG...
We urgently need a coherent national AI cybersecurity policy
This Substack post adapted from my AI Security Forum 2026 keynote which I gave last week in Las Vegas · Source deck: aisf_2026.pptx
We’ll soon be in a world full of cheap security agents that can automate much of the kill chains our advers...
The OpenAI/Huggingface incident; how we should manage the imminent arrival of autonomous hacking too cheap to meter
The OpenAI / Huggingface hack, where an unguardrailed, unreleased model at OpenAI broke out of its sandbox, moved laterally within OpenAI’s infrastructure, and hacked into servers at Huggingface, will be looked back upon as the canary dying...
We need to rescue the AI safety research program from its incoherence
I’ve cared about AI risks and AI based defense for a long time. I started building machine-learning systems for cyber defense in 2010 back when that meant Bayes nets and simple machine learning models. Starting in 2022 I worked on LLM safet...
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Machine learning, cyber security, social science, philosophy, classical/jazz piano. Incubated and led Meta's security for LLMs and AI for security work, now building Abundant Security
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