Sarah Guo

Looking for TS cleared engineers that want to work on a funded, urgent startup with big mission and killer people. Must be willing to live in CA, WA, HI for now DC probably also ok

https://t.co/uDSy94crNl

Rundown of the very bad week in security: - TeamPCP (sophisticated hacking group) attacks: Hackers broke into the system that builds a oss popular security scanning tool called Trivy. This was a supply chain attack (when bad code is slipped into widely used software tools or libraries, so it spreads automatically to anyone who downloads or uses them). They used the stolen access to poison other tools like LiteLLM (a popular Python gateway library with ~100m million monthly downloads that lets developers easily call many different AI models through one simple interface) and Telnyx (a comms platform, that for example lets devs make phone calls …

Brutal week for security teams. These aren't failures of negligence, but what happens when systems/processes work as designed and still can't be explained end to end. This is an industry-wide, structural problem. We're entering an era of software abundance, and shipping before you fully understand what you've built isn't a character flaw. It's how you compete! But there's a gap between 'we move fast' and 'we cannot tell you what our system did with your data last week.' New essay: Dark Code

I know its "another tuesday" guys, but what(!) is happening in security right now

far and away, the best prize life has to offer, is the chance to work hard at work worth doing (Teddy Roosevelt) ^^more important than ever to consider seriously what prize you’re playing for

Whoaaaaa

nobody can learn for you, not even your agents

what a queen

Wow! Beginning to believe in procurement reform now 🇺🇸

if you’re a startup in 2026 and you don’t have a “labs” group, you might as well be enterprise SaaS

Boom Loop 🔁

“most people have no idea what to do with AI” TikTok/Facebook is perhaps the most poignant example of “the data the biggest companies have that they think of as their moat…is not the moat”

Bernie Sanders does not want Americans to have intelligence

Let us have “the conviction to translate [American innovation] into action and progress for the next 250 years” — @zebulgar @CGarrett_15 @jacobhelberg opening Hill & Valley ‘26 https://t.co/oDUoDGb1cj

watching claude try to use the browser...are websites being adversarial to computer use on purpose? or is CUA still that bad

any nontechnical folks want to get more comfortable/powerful in their use of AI and want to be a beta user on something I made?

ICYMI: podcast with @karpathy last Friday on the phase shift in engineering, AI psychosis, claws, AutoResearch, the opportunity for a SETI-at-Home like movement in AI, the model landscape, and second order effects — link👇 https://t.co/gVgZQxb2p6 https://t.co/pokLCzWHRh https://t.co/9XaZzJPpP7 https://t.co/3y7b83esvD

is talking to a model fine-tuned on your own thoughts (say, for investment judgement) a sign of madness? given this kind of iteration can help models, maybe it helps humans "silicon ducking" instead of rubber ducking

Caught up with @karpathy for a new @NoPriorsPod: on the phase shift in engineering, AI psychosis, claws, AutoResearch, the opportunity for a SETI-at-Home like movement in AI, the model landscape, and second order effects 02:55 - What Capability Limits Remain? 06:15 - What Mastery of Coding Agents Looks Like 11:16 - Second Order Effects of Coding Agents 15:51 - Why AutoResearch 22:45 - Relevant Skills in the AI Era 28:25 - Model Speciation 32:30 - Collaboration Surfaces for Humans and AI 37:28 - Analysis of Jobs Market Data 48:25 - Open vs. Closed Source Models 53:51 - Autonomous Robotics and Atoms 1:00:59 - MicroGPT and Agentic Education 1:0…

Many tech incumbents are guilty of two sins in the AI era: 1. stack fallacy - assumption they have all the “ingredients” so we can compete (but system sucks) 2. too slow to realize talent they have != talent they need, until they’ve lost market cap necessary to make acquisitions/hires

ICYMI, last week’s No Priors: Notion founder @simonlast on the company’s expanded vision, given rapidly growing ai capabilities

The incredible team @latent_health raised $80M to help patients get treatment, and unlock scale in healthcare providers with AI. Love working with them. We’re hiring!!!

Friends in Israel welcomed their baby today in an underground bunker. In the midst of war, their resilience astounds me. Sending love and hoping for safer days ahead 🤍

Jensen believes in the growth of our humanity, not in its replacement

guys it's a 🔥 lineup for @Conviction Embed retreat: @btaylor (Founder, Sierra & Chairman, OpenAI) @mikeyk (Labs, Anthropic & Founder, Instagram) @parkerconrad (Founder, Rippling) @zackmziegler (Founder, OpenEvidence) John Haddock (Chief Business Officer, Harvey) @GuptaRK22 (Founder, Ithaca) @Karpathy (Sensei, Researcher) @milichab (Cursor, xAI)

AI-for-science will be glorious

you'd be so lucky to work with this person (and this team)

An AI agent can now discover a tool on the internet, call it, and take action in production. Two years ago unthinkable, today that's a slow Tuesday night. Every enterprise will need a control plane for AI -- we backed @maximbarkogan, Gil Elbaz and team Onyx (with @giliraanan and $40M) to build it.

maxim's introduction here! https://t.co/bfhzOX6HPy