40C3 halfnarp – Submit talk preferences to aid scheduling

Quasi-Logarithmic Kitchen Timer

Like some of you, we have several kitchen appliances with integrated digital timers.

OpenTubeX: Watch YouTube Without a Google Account

OpenTubeX is a YouTube client that lets you watch videos without a Google account and keep your viewing history under your control.

Saving A Vintage High-Voltage Power Supply From The Scrap Heap

A Fluke Model 407 high-voltage power supply gets rescued from the scrap heap and diagnosed on video. Mr Carlson powers it up safely using an isolated transformer and a current-limited variac, avoiding the risk of full power on old components. The vacuum-tube-and-circuit-board unit shows no visible damage but its output misbehaves. Using the original schematics, he traces the fault to a single faulty capacitor in the feedback loop that keeps output voltage constant.

Learn Real-World Penetration Testing: Hands-On Ethical Hacking Crash Course

Understanding how malicious actors infiltrate networks is the first step to building resilient infrastructure. To help developers and aspiring security analysts learn the fundamentals of offensive sec

Pwn.college

pwn.college is a free, hands-on education platform for learning core cybersecurity and hacking skills, maintained by a team at Arizona State University. Learners progress through belt ranks, starting with a 'white belt' and earning belts through practice. Hackers continue beyond the platform to 'brown belt' and eventually 'black belt' status, which must happen outside the dojo. The site powers much of ASU's cybersecurity curriculum and asks users not to post writeups or walkthrough videos of challenge solutions. It points learners toward CTFtime.org for Capture The Flag events and a GitHub list of wargames for further practice. The underlying infrastructure is open source and accepts pull requests, though some modules remain closed-source.

GTA.js, a reimplementation of the 1997 Grand Theft Auto engine in JavaScript and WebGL

Dự án GTA.js tái tạo lại engine của game Grand Theft Auto năm 1997 bằng JavaScript và WebGL, có thể chơi tại gtajs.wtf. Đây là bản reimplement chứ không phải emulator, nên một số vật lý và animation khác với bản gốc, nhưng engine nhiệm vụ chính xác dựa trên tài liệu mtd.doc. Tác giả sử dụng Gemini AI để triển khai hầu hết các tính năng, tham khảo tài liệu mở, ghi chú cộng đồng và trí nhớ cá nhân về game. Hiện tại game đã chơi được nhưng cảnh sát (cops) vẫn chưa được implement.

Lập trình viên nên đọc bài này để khám phá cách tái tạo lại engine game cổ bằng JavaScript và WebGL từ con số không.

A Little Snitch for Windows

PacketHound is a free outbound firewall for Windows. The first time an app tries to connect to the internet, it asks you: Allow or Block.

The PlayStation 3 briefly made buying a console a way to buy a Linux computer

It was a little too good at what it did, though.