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An Intuitive Guide to Linear Algebra (2012)
Despite two linear algebra classes, my knowledge consisted of "Matrices, determinants, eigen something something". Why? Well, let's try this course format:
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 80,798 posts.
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How io_uring and eBPF Will Revolutionize Programming in Linux
ScyllaDB’s Glauber Costa explains how two new APIs, io_uring and eBPF, are changing the fundamental nature of Linux programming.
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Discovering that a Bluetooth car battery monitor is siphoning location data
Reverse engineering an Android app for a Bluetooth connected car battery monitor with some startling discoveries ...
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Breaking Up with Google Play: Why Conversations Is Now Free
Conversations, my federated instant messaging client for Android, started out as many traditional open-source projects do: as an attempt to scratch my own itch. Development started in January 2014 in my student dormitory, and within weeks I started dogfooding and using the client as the primary means of communicating…
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Meta confirms 1000s of Instagram accounts were hacked by abusing its AI chatbot
Meta fixed the bug that let anyone trick its Meta AI chatbot into resetting the password on Instagram accounts that didn't have two-factor authentication.
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We Made One Gram Of Remdesivir
Two of the experimental coronavirus drugs, chloroquine, and hydroxychloroquine are a breeze to synthesize. But remdesivir, possibly the most promising candidate, is anything but. It's a royal pain. Here's why.
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You are committing a crime right now
Are you reading this blog? If so, you are committing a crime under 18 USC 1030(a) (better known as the “ Computer Fraud & Abus...
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Qwenputer: A functioning, deterministic RISC-V CPU inside Qwen3.5
I compiled a RISC-V CPU into Qwen 3.5 4B's weights, using its Gated DeltaNet layers as RAM. It runs C and MicroPython inside the forward passes, and Qwen uses it for exact arithmetic.
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Docker 1.0
Docker is a founding member of the Blueprint Alliance, a 12-company reference architecture for securing AI agents, built around four governance questions.
3041
HTTP Security Headers – A Complete Guide
A description of each security header, why it is important, and how to configure your website in a secure way.
3042
Sam Altman returns as CEO, OpenAI has a new initial board
Mira Murati as CTO, Greg Brockman returns as President. Read messages from CEO Sam Altman and board chair Bret Taylor.
3043
Gemini 2.5 Pro Preview
Explore the new Gemini 2.5 Pro I/O Edition, featuring enhanced coding performance, video to code capabilities, and improvements for front-end web development.
3044
RSA is a fragile cryptosystem
Here at Trail of Bits we review a lot of code. From major open source projects to exciting new proprietary software, we’ve seen it all. But one common denominator in all of these systems is that for some inexplicable reason people still seem to think RSA is a good cryptosystem to use. Let me save […]
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I Bought A Firetruck
Independent editorial coverage across technology, gaming, automotive, finance, health, entertainment, and 19 more verticals. Deep reporting, real expertise.
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I found a useful Git one liner buried in leaked CIA developer docs
How to delete all merged git branches locally with a single command. This one-liner has been in my zshrc since 2017 — I found it buried in the CIA's Vault7 l...
3048
Europe’s next-generation weather satellite sends back first images
The first images from the Meteosat Third Generation-Sounder satellite have been shared at the European Space Conference in Brussels, showing how the mission will provide data on temperature and humidity, for more accurate weather forecasting over Europe and northern Africa.
3049
Rolling Shutters
I remember seeing once the following photo from Flickr, and having my brain melt slightly from trying to figure out what went wrong: The issue was the propeller was rotating as the camera detector 'read out', i.e. there was some motion during the exposure of the camera. This is an interesting thing to think about…
3050
Exposed DeepSeek database leaking sensitive information, including chat history
A publicly accessible database belonging to DeepSeek allowed full control over database operations, including the ability to access internal data. The exposure includes over a million lines of log streams with highly sensitive information.
3051
The last three years of my work will be permanently abandoned
It’s been almost two years since my last update here. A lot has happened. I hope you all are continuing to weather the ongoing multiple global pandemics and other anthropogenic crises. Apolog…
3052
Just use Postgres for everything
Replace Redis, MongoDB, Kafka & more with PostgreSQL. Reduce complexity, boost development speed. Complete guide with real examples.
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The Death of Daydreaming
What we lose when phones take away boredom and interstitial time
3056
Microsoft acquires Citus Data (YC S11)
Data and analytics are increasingly at the center of digital transformation, with the most leading-edge enterprises leveraging data to drive customer acquisition and satisfaction, long-term strategic planning, and expansion into net new markets. This digital revolution is placing an incredible demand on technology…
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Writing about what you learn pushes you to understand topics better
Write about what you learn. It pushes you to understand topics better. Sometimes the gaps in our knowledge only become clear when explaining things to others.
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DirectX is coming to the Windows Subsystem for Linux
DirectX 12, NVIDIA CUDA, OpenGL and OpenCL acceleration are coming to the Windows Subsystem for Linux.