Every blog post that took off on Hacker News, ranked by the votes of its best submission. 49,199 posts.
In this blog post, I’m going to share about a double-free vulnerability that I discovered in WhatsApp for Android, and how I turned it into an RCE. I informed this to Facebook. Facebook acknowledged and patched it officially in WhatsApp version 2.19.244. Facebook reserved CVE-2019-11932 for this issue.
When I launched Instapaper in 2008, it was a very basic web app. It quickly expanded to define the pillars of the read-later market: a one-click “read later” bookmarklet, a web sync service, an adjustable text view optimized for reading, and an iPhone app with offline saving. I did almost everything myself, which…
I enjoy breaking websites.
In March, I made my DevOps books free to help anyone who wanted to learn new skills during the global pandemic lockdown. In April, Device42 generously extended that offer for another month. I originally had the idea to give the books away on a whim on a Sunday night, thinking I'd give up a fair chunk of revenue, but…
In November last year — I started building a DIY security alarm system, using a Raspberry Pi as the controller. My plan was to make a self-sustained system, using proper alarm hardware — like PIR sensors and sirens. Integration with Home Assistant would be an add-on, not a requirement. I wanted the system to be as…
Python Programming tutorials from beginner to advanced on a massive variety of topics. All video and text tutorials are free.
It's not about technology for its own sake. It's about being able to implement your ideas.
On October 23, 2026, the unthinkable happened. It was supposed to be a mere formality: C++26 was up for a vote by the ISO National Bodi...
A lot of smart college students end up with the idea that “solving hard technical problems” is the best thing they can do with their life—probably because that’s the only thing they’ve ever been rewarded for so far.
Right now, my inbox holds media requests from Buzzfeed, Daily Dot, Guardian, Associated Press, and newly, La Repubblica, Italy’s largest…
I was sending an email when a little magic wand popped up that said “Polish” and I thought that was weird because why would I want to translate my email into Polish? I tried to click on…
I switched to ProtonMail a few years back after getting fed up with Google. It’s been mostly acceptable, but a few months ago the Android client started mangling emails – if I hit “send” too soon, it would send out only part of what I’d typed; I had to wait 10 seconds or so after I finished typing before hitting send…
Hewlett & Packard, the founders, had great lessons to teach us (managers in high-tech) about culture. To the extend of quoting them in my awesome...
Dropping Cloudflare and migrating to bunny.net, starting out with my blog.
I've come to a conclusion that I have nothing to show for my 25 years of coding. I am ready to begin and I have a plan.
About the rise and fall of Microsoft's take on the web.
The first time I tried to use an LLM to speed up coding was in mid-2025. I was not impressed. I was working on libadbmdns back then, an mDNS implementation in Rust. The code produced would not even compile.
📢Update: My message has been heard and our domain has been unblocked. We never received an explanation - HN might have done it. Thank you everyone for sharing. In my spare time, I maintain an open-source SAAS tool for non-profits that allows you to build an online shop, sell
Hey everyone, it's been a while. Hope you're all doing well. Today I want to show you some more watch related stuff I've been working on.
Here’s Kyle Aster on why thoughtful URL design is important (in 2010) : URLs are universal. They work in Firefox, Chrome, Safari, Internet Explorer, cURL…
Random thoughts, articles and projects by a chronic overengineer.
Scott’s foreword: Cynthia Dwork is Gordon McKay Professor of Computer Science at Harvard, and a pioneer in the fields of differential privacy and algorithmic fairness. On my recent travels to…
Since this January, David Anderson and I have been working on making Firefox use multiple processes. Tom Schuster (evilpie on IRC) joined us as an intern this summer, and Felipe Gomes, Mark Hammond…
Great things and people that I discovered, learned, read, met, etc. in 2025. No particular ordering is implied. Not everything is new.
