
prompt engineer @browsercompany | I make apps. My code runs on 100mil+ phones | former iOSdev @Twitter | indie dev @mindGoblinStdio
Seattle, WA
Joined October 2012
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3% of “critical” software security bugs, in all of recorded history, have been found in the last month.
This is on pace to find another ~100,000 bugs this year alone, adding ~26% more vulnerabilities to the all time total
Do you realize how fucking insane that is?
Nick Dobos retweeted
We've decided to sunset Arc on December 22, 2026.
That's not an easy sentence to write. We spent years building Arc and celebrating each and every release along the way: we have so much pride and love for what we made alongside the Arc community.
Our priority is to deliver best-in-class security for our members. Keeping a browser secure takes constant, dedicated work that is only increasing in the age of AI. Dia was built from the ground up to meet today’s security standards, so that's where our engineering and security teams will focus moving forward.
We've worked to make switching to @diabrowser as easy as possible for Arc members. Here's how:
· Your passwords, bookmarks, extensions and history come over to Dia seamlessly.
· Spaces, Folders, and Tab Groups are in Dia and import over with your data intact.
· Dia now surpasses Arc benchmarks in stability, speed, and security.
· The browser features you use in Arc are free in Dia, and the AI is optional.
Thank you for using Arc, for pushing us to make it better, and for building alongside us. The team that made Arc is the same team behind Dia, and some of our most ambitious work is just ahead. We'd love for you to be there with us when it lands.
“attackers will move to social engineering, with insanely capable models persuading people to click things, grant access, or make mistakes.”
1. GPT-4o proved that AI is already capable of super persuasion. Imagine being hunted by something smarter than you.
2. Surely training people to re-sign into MCPs multiple times a week won’t make this worse. /s
I genuinely believe it’s becoming more dangerous to be on the internet for most people. High skill cap required to avoid being one shotted by Ai mind viruses that ruin your life in various ways.
Replying to @tszzl
you're underestimating the state space of all possible ways to compromise a company. no amount of astra or mythos tokens is going to fundamentally change the asymmetry anytime soon. it is also very clear that every model is opening up new vulnerability space with no saturation anytime soon. with all the insane vibe coding and expanding agentic attack surfaces, it's only going to get worse.
even if we somehow saturate vulnerability discovery and patching, attackers will move to social engineering, with insanely capable models persuading people to click things, grant access, or make mistakes.
i don't see a future where cybersecurity becomes defense-dominant without just cutting down software, and continuous agents monitoring and stopping attacks across individuals and organizations, and even then, it might require something like 30% of all inference compute devoted to defense
Whelp grok @bot just added all 50+ of my bots to my DMs here and now I can’t read any notifications from humans lol
Lmfao one of the big security vulnerabilities found yesterday was because they randomly generated passwords between 0-256,
Instead of 256-bit, aka between 0- 99999999999999999999999999999999999999999999999999999999999999999999999999999
Millions*
Some stats on #php2shell. In the 10 hours before it was publicly announced, across the @Cloudflare network we saw thousands of attempts to exploit it. That jumped to tens of thousands in the 45 minutes post announcement, hundreds of thousands within 2 hours, and millions now.
Buckle up. The world is about to get very weird.
Tesla says they have officially started Optimus production in Fremont on their high-volume lines.
"The bots coming off this line are the first production quality bots that we have manufactured. While we will continue to iterate on the hardware and manufacturing process, we have proven that the current manufacturing process for Optimus is suitable for a commercial product."
Making cancer drugs in space because in microgravity the chemistry of crystals forming is more uniform which leads to better performing drugs.
That’s sick as hell. The future is awesome.
Let me explain why is @VardaSpace is such an important company
A patient who has cancer has cells that have proteins that are activated leading to growth, replication and then damage.
Targeted drugs work on these cells in 2 ways:
1. Inhibit the receptor (the protein), essentially jamming its function until the drug wears off. An example is Tamoxifen, used in breast cancer to block oestrogen receptor binding.
2. Degrading the receptor altogether so signalling doesn't work and the cell needs to spend time recreating the receptor before it can work again, an example being Fulvestrant which degrades the receptor itself.
The second option here is important to understand because the effect of it significantly out lasts how long the drug lasts in your system. One type of these drugs is called PROTACs - it's a newer type of cancer drug that destroys these proteins (proteolysis) removing functions often related to cancer signalling.
Now these drugs are complex, 15+ chemical steps and can be upto 4x more heavy than normal drugs. With each molecule taking many shapes, when packed together, they often don't form a uniform lattice shape. On Earth, gravity leads to convection currents that feeds these molecules unevenly into the forming crystal, too fast resulting in non-uniform crystal formation.
These drugs:
- Dissolve poorly when ingested
- Have difficulties crossing cell membranes
- Lead to unpredictable bioavailability
- Require high doses in order to get enough drug in the system
Varda here by @WillBruey and @zebulgar aims to solves this with undisturbed crystal formation growth in microgravity.
With a new purer drug you get:
- Predictable bioavailability
- A more stable drug
- A better outcome for patients
This is Varda
Game changer for chat tab hoarders.
I think this effectively 2-4x’es my usage???
Huge for scheduled tasks too, because now you can let big threads of context pile up and get retriggered after multi hour or day delays. So now your weekly planning thread with 700k preloaded context tokens is super cheap cached price.
Oh fascinating. League of legends is being reverse engineer distilled Vibecode attacked to the point they have had to change how game replays work. Model labs aren’t the only ones who need anti distilled patterns now.
Incredible public good. I’m so excited to see how health evolves for the world
ChatGPT is now the largest medical record sync from hospitals to consumers, passing Apple.
I'm glad we can all access our medical records through the apps we choose. Rightly so!
We're working with Epic and hospitals to reduce the API load on their servers. The current setup is archaic - the equivalent of refreshing your inbox instead of getting a push when email arrives.
FHIR Subscriptions can solve this & reduce strain on the system.

























