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Show HN: We chased a weather balloon across Montana and never found it

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TechnologyCertification

Show HN: We chased a weather balloon across Montana and never found it

Since April, I have been working with Sam Flynn ( https://drook.dev ) to make this balloon payload, UpLink. We did a similar launch last year with Hack Club but this was our first independent launch. UpLink was a 491 gram payload testing the insulation properties of 3D printing filaments, while also transmitting 320x240 images over a radio link -- up from the 18x10 images last year! This is a writeup on our engineering process, mistakes made, and learning experiences. It covers: - Custom electronics designed in KiCad - Firmware design - Results from the data we received on the ground - Image transmission - Launch day logistics, and where things went wrong All hardware, software, firmware, and CAD is available on GitHub: https://github.com/radeeyate/UpLink , licensed + certified as open source hardware: https://certification.oshwa.org/us002826.html If you just want to see the images received, I put up a gallery here: https://uplink.gallery.radi8.dev/ If you have any questions, comments, or concerns, let me know. I'm happy to answer anything!

URL shortener links stored in your ATProto PDS

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TechnologyNews

URL shortener links stored in your ATProto PDS

12 points 2 comments on Hacker News · atpr.to

Hacker NewsAugust 20, 20261 min read

AI-Generated Exploit Scripts Target Siemens S7 PLCs in U.S. Critical Infrastructure

Matched "The Hacker News"Found in Source

AISecurity Advisory

AI-Generated Exploit Scripts Target Siemens S7 PLCs in U.S. Critical Infrastructure

The U.S. government on Wednesday warned of an "active threat" targeting critical infrastructure organizations in the country using artificial intelligence (AI)-generated exploit scripts. The activity is targeting Siemens S7 SeriesProgrammable Logic Controllers (PLCs) to conduct reconnaissance and capability development using AI-generated scripts disguised as legitimate monitoring tools. That

The Hacker NewsAugust 20, 20261 min read

How to compromise your system with a job interview

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TechnologyTutorial

How to compromise your system with a job interview

60 points 25 comments on Hacker News · codedge.de

Hacker NewsAugust 20, 20261 min read

Matched "The Hacker News"Found in Description

TechnologyRelease

Linux 7.2

73 points 19 comments on Hacker News · igalia.com

Hacker NewsAugust 20, 20261 min read

Matched "The Hacker News"Found in Description

TechnologyRelease

Generic Methods in Go 1.27

42 points 16 comments on Hacker News · dominik.info

Hacker NewsAugust 20, 20261 min read

New Cryptographic Context Injection Attack Could Let Web Pages Steal Grok Chat Data

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SecuritySecurity Advisory

New Cryptographic Context Injection Attack Could Let Web Pages Steal Grok Chat Data

Adversa AI has disclosed an attack technique that it says can cause xAI's Grok chatbot to send a user's name, approximate location, subscription tier, and the prompts from the ongoing conversation to an attacker-controlled server after the user asks it to summarize an ordinary web page. The AI security company, which has codenamed the technique "Cryptographic Context Injection," said the

The Hacker NewsAugust 20, 20261 min read

Show HN: Omacosy – Omarchy-style tiling desktop for macOS, no SIP

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TechnologyRelease

Show HN: Omacosy – Omarchy-style tiling desktop for macOS, no SIP

I have been using omarchy on my tower since nearly a year now, shortly after it was released first. I really love the experience I am having with it but I still use my macbook for daly work, so I wanted to recreate a similar experience on it. Thats why I created omacosy, a setup for tiling windows, custom menu bar, some themes from omarchy, focus follows mouse, focus rings around windwos, some mac flavors with trackpad events and a custom mission control overview for your workspaces. I used AeroSpace over yabai for the tiling window manager because I didnt wanted to compromise on SIP which is a mac security feature. It is supposed to be keyboard first like omarchy to move windows organize workspaces etc The setup runs around 157mb of ram and consists of AeroSpace, Karabiner (for the super key), and five small self build swift binaries. I am running it daily on my M1 max macbook, currently on macOS26. I havent tested it much on other macbooks or macOS versions. The install script creates a manifest file to backup what was installed before and what it installed itself, the uninstall script takes that into account to clean up the macbook to exactly the state it was in before. It needs quite some permissions for it sfunctionality which I layed our in the project readme. I wanted to be really transparent about which permissions it uses and for what reason. I would love to get some feedback or see people trying it out and hearing your opinion. Mostly about what still doesnt feel smooth in the experience or if you find any performance issues.

Hacker NewsAugust 20, 20261 min read

Isolated-vm Flaw Lets Sandboxed JavaScript Escape to Host for Potential RCE

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ProgrammingSecurity Advisory

Isolated-vm Flaw Lets Sandboxed JavaScript Escape to Host for Potential RCE

Cybersecurity researchers have disclosed a critical security flaw in isolated-vm, a popular open-source sandbox with more than 2,900 stars and 190 forks on GitHub, that could allow attackers to escape the confines of the isolated environment. The vulnerability ("GHSA-864f-rcv7-6rh4"), which has yet to be assigned a CVE identifier, impacts all versions of the library before and including 7.0.0.

The Hacker NewsAugust 20, 20261 min read

Critical NetScaler Flaw Can Bypass Authentication on Certain Gateway and AAA Servers

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SecuritySecurity Advisory

Critical NetScaler Flaw Can Bypass Authentication on Certain Gateway and AAA Servers

Citrix has released updates to address two security flaws impacting NetScaler ADC and NetScaler Gateway deployments, including a critical-severity authentication bypass vulnerability. According to the cloud computing and virtualization technology company, the issues affect customer-managed NetScaler ADC and NetScaler Gateway, including certain FIPS and NDcPP builds, as well as SecurAccess

The Hacker NewsAugust 20, 20261 min read

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TechnologyResearch

DiffusionGemma Technical Report

107 points 20 comments on Hacker News · arxiv.org

Hacker NewsAugust 20, 20261 min read

Attackers Exploit Zimbra SNMP Flaw for Unauthenticated Remote Code Execution

Matched "The Hacker News"Found in Source

SecuritySecurity Advisory

Attackers Exploit Zimbra SNMP Flaw for Unauthenticated Remote Code Execution

A now-patched security flaw impacting Zimbra Collaboration (ZCS) has come under active exploitation in the wild, according to the Polish Computer Emergency Response Team (CERT Polska). The vulnerability in question is CVE-2026-73570 (CVSS score: 8.9), which refers to a case of command injection that can lead to remote code execution. "A remote code execution vulnerability exists in Zimbra

The Hacker NewsAugust 20, 20261 min read

Search Results

Show HN: We chased a weather balloon across Montana and never found it

URL shortener links stored in your ATProto PDS

AI-Generated Exploit Scripts Target Siemens S7 PLCs in U.S. Critical Infrastructure

How to compromise your system with a job interview

Linux 7.2

Generic Methods in Go 1.27

New Cryptographic Context Injection Attack Could Let Web Pages Steal Grok Chat Data

Show HN: Omacosy – Omarchy-style tiling desktop for macOS, no SIP

Isolated-vm Flaw Lets Sandboxed JavaScript Escape to Host for Potential RCE

Critical NetScaler Flaw Can Bypass Authentication on Certain Gateway and AAA Servers

DiffusionGemma Technical Report

Attackers Exploit Zimbra SNMP Flaw for Unauthenticated Remote Code Execution

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