Chrome extensions spying on 37M users' browsing data

https://substackcdn.com/image/fetch/$s_!kI0A!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4bc7ba4b-4d4d-48cd-8ba7-b8cbec20887f_2896x1947.jpeg
Researchers found Chrome extensions leaking user data to data brokers like Similarweb, which collects and resells browsing histories. The issue is alarming as it can be used for targeted advertising, corporate espionage, and credential harvesting.

It's all a blur

https://substackcdn.com/image/fetch/$s_!D1oj!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0087865d-a763-4b28-b680-029eb525ae0e_2050x2650.jpeg
A simple blur algorithm can be reversible by analyzing the averages of neighboring pixels. The original image can be reconstructed by subtracting the averages of neighboring pixels to find the underlying pixel values.

Windows Notepad App Remote Code Execution Vulnerability

Common vulnerabilities and Exposures (CVE)

Show HN: AI agents play SimCity through a REST API

https://hallucinatingsplines.com/drwright.webp
The city simulator where AI agents are the mayors. Build and manage cities through an API or MCP server.

FAA closes airspace around El Paso, Texas, for 10 days, grounding all flights

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The FAA is closing airspace around El Paso International Airport for 10 days due to special security reasons. All flights to and from the airport will be grounded from late Tuesday through February 20.

Exposure Simulator

http://www.andersenimages.com/tutorials/exposure-simulator/shootingMode_tv.png
The simulator works with Chrome or Firefox, simulating camera settings like depth-of-field and image noise. It offers three modes: Shutter Priority, Aperture Priority, and Manual, with a camera meter for exposure control.

A Cosmic Miracle: A Remarkably Luminous Galaxy at z=14.44 Confirmed with JWST

https://s3.amazonaws.com/production.scholastica/journal/1436/homepage_journal_logo/original/maynooth_square_white.png?1538126210
A remarkably luminous galaxy, MoM-z14, has been confirmed at zspec=14.44, 280 million years after the Big Bang. Its properties suggest a young stellar population and possible formation of luminous supermassive stars in dense clusters.

Do not apologize for replying late to my email

https://ploum.net/files/bikepunk_logo_petit.png
You're tired of receiving unnecessary apologies in emails and want people to stop feeling pressured to reply immediately. You think asynchronous communication means responding at your own pace, not feeling obligated to reply right away.

The Feynman Lectures on Physics (1961-1964)

Cloudflare Ray ID和触发阻止的行为详细信息。

The Singularity will occur on a Tuesday

https://campedersen.com/_next/static/media/always-has-been.7ceff529.jpg
The singularity date is determined by a hyperbolic model of AI progress, specifically the rate of human discovery of emergent AI behaviors, which peaks in 2025. This date marks when human attention and institutional response time can no longer keep up with AI advancements, leading to social consequences such as labor displacement and capital concentration.

Ex-GitHub CEO launches a new developer platform for AI agents

https://entire.io/entire-funding-announcement-even-logos.png
Entire, a new developer platform, is backed by a $60 million seed round to build a system for agent-to-human collaboration. Entire's first product is an open source CLI that captures agent context in Git on every push.

Exploring a Modern SMTPE 2110 Broadcast Truck

https://www.jeffgeerling.com/blog/2026/exploring-a-modern-smpte-2110-broadcast-truck-with-my-dad/blues-game-production-truck-prod-room.jpg
The author and his Dad toured a St. Louis Blues hockey game's broadcast truck, learning about SMPTE 2110 and timing signals. They saw Evertz 5700MSC-IP Grandmaster clocks and a Tektronix PRISM IP engineering test tool used for precise time sync.

Show HN: Itsyhome – Control HomeKit from your Mac menu bar (open source)

https://itsyhome.app/itsytv-promo.webp
Itsyhome is a macOS menu bar app that controls HomeKit devices with one click, featuring groups, scenes, and shortcuts. It offers instant access, customization, and automation for a seamless smart home experience.

Show HN: CodeMic

https://codemic.io/session-cover?id=53983f97-12b7-4771-b480-46a1c54c4d40
Record sessions locally as JSON files, edit with timeline, speed control, and chapters. Publish on CodeMic.io or share manually, editor independent file format.

Clean-room implementation of Half-Life 2 on the Quake 1 engine

https://code.idtech.space/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=1.19.1
Anubis is a server protection system using Proof-of-Work to prevent aggressive website scraping. It requires modern JavaScript features and may be disabled by plugins like JShelter.

Visualize MySQL query execution plans as interactive FlameGraphs

https://raw.githubusercontent.com/vgrippa/myflames/master/demos/mysql-query-bargraph.svg
This tool visualizes MySQL query execution plans as interactive flame graphs and bar charts, requiring the new JSON format version 2 for EXPLAIN output available in MySQL 8.4+. It can be used to analyze query performance and identify bottlenecks, with various options for customization and output.

CoLoop (YC S21) Is Hiring Ex Technical Founders in London

CoLoop is a startup that helps companies avoid product-market fit issues, founded by ex-founders who have experienced near-death experiences. They're looking for ex-founders to join their team and work on agentic AI, with a flat structure and earned influence through skill and context.

The Day the Telnet Died

https://www.labs.greynoise.io/grimoire/2026-02-10-telnet-falls-silent/media/asn-heatmap.png
On January 14, 2026, a sudden 65% drop in global telnet traffic occurred, which was likely caused by a US-based Tier 1 transit provider implementing port 23 filtering. This filtering was possibly in response to a coordinated request or advance notification of a critical telnet vulnerability, CVE-2026-24061, which was disclosed six days later.

Fun With Pinball

https://www.funwithpinball.com/img/s/v-10/p1995277388-4.jpg
Pinball machines use various devices such as solenoids, relays, and steppers to create motion and track features. These devices are connected to a transformer and can be easily swapped or removed if they break down.

Signy: Signed URLs for Small Devices

https://opengraph.githubassets.com/baa2207d3ee404bc6b140c4b74071a27fdfdaab329a4c91c5dc5e355f602d3b7/golioth/signy
signy is a library for generating time-limited signed URLs using asymmetric cryptography on embedded devices. It requires a server to verify the URLs and uses PSA Crypto API for signing operations.

My eighth year as a bootstrapped founder

https://mtlynch.io/bootstrapped-founder-year-8/cover.webp
The user is an indie founder who created a product called TinyPilot and now writes a book to teach developers to improve their writing, earning $11.8k in pre-sales and $8.2k in total profit this year. The user found a business that aligns with their interests and values, allowing them to maintain a good work-life balance and enjoy their work as a solo developer.

The Little Learner: A Straight Line to Deep Learning (2023)

You don't have permission to access "http://mitpress.mit.edu/9780262546379/the-little-learner/" on this server.

Both GCC and Clang generate strange/inefficient code

User shared a C++ function that checks if an std::array contains only zeros. They compiled this function with gcc and Clang, observing different and sometimes inefficient assembly code.

Rome is studded with cannon balls (2022)

https://www.essenceofrome.com/root/wp-content/uploads/2022/11/Header.jpg
Did you know that Rome is studded with cannon balls? Not many know that the city is full of sites where you can still see cannon balls. Rome has been the center of many battles and there are many sites around the city, that remind us of this. If you want to take a TOUR around the city, we’ll accompany you and share with you the story of the many cannon balls you can see around the city. Come ...

Show HN: I taught GPT-OSS-120B to see using Google Lens and OpenCV

I built an MCP server that gives any local LLM real Google search and now vision capabilities - no API keys needed. Booyah!

Simplifying Vulkan one subsystem at a time

https://www.khronos.org/assets/uploads/apis/Vulkan-Square.png
The Vulkan working group is addressing the "extension explosion problem" by revising whole API subsystems, starting with VK_EXT_descriptor_heap, which replaces the existing descriptor set subsystem. This new extension aims to simplify descriptor management and improve performance.

Europe's $24T Breakup with Visa and Mastercard Has Begun

https://europeanbusinessmagazine.com/wp-content/uploads/2026/02/visa-1068x712.jpg
ECB President Christine Lagarde calls for Europe to break its dependence on US payment infrastructure, citing data security concerns. A coalition of 16 banks is building a pan-European payment network, Wero, to let Europeans pay and transfer money without touching US networks.

Willow – Protocols for an uncertain future [video]

https://fosdem.org/2026/assets/style/logo-gear-7204a6874eb0128932db10ff4030910401ac06f4e907f8b4a40da24ba592b252.png
We'll examine how centralized and peer-to-peer systems have been abused and apply lessons to new designs like Willow. Willow takes steps to prevent abuse by making it harder to turn against users.

Mathematicians disagree on the essential structure of the complex numbers (2024)

https://substackcdn.com/image/fetch/$s_!LLOP!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbfa08af5-c9c1-47dc-b75b-73edff9ba33f_1792x1024.webp
Mathematicians have different conceptions of the complex numbers, including the analytic, smooth, rigid, and algebraic conceptions, each with distinct structural features and automorphism groups. The choice of conception affects how one views the complex numbers, with some mathematicians considering it a field extension of the real numbers, others as a topological space, and others as a ...

Show HN: Rowboat – AI coworker that turns your work into a knowledge graph (OSS)

https://private-user-images.githubusercontent.com/6592213/547591215-fc463b99-01b3-401c-b4a4-044dad480901.png?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.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.AgP2Mq2HhZ3cZTZHFNcwGz-N1wfgQMaROf0ihaVY5IY
Rowboat is a tool that helps with productivity by building a knowledge graph and using context to generate work-related documents and summaries. It connects to external tools and services via Model Context Protocol to automate routine tasks and provide on-your-machine help.