HackerNoon

Why Your Hex Converter Lies to You: Two's Complement, the 53-Bit Wall, and Radix Magic

An in-depth exploration of two's complement, sign extension traps, IEEE-754 precision limits in JavaScript, and why Radix 36 ...
2-Spyware

BlackX UEFI bootkit: what it is, who it targets and what to do on Windows

BlackX is a UEFI bootkit that bypasses Secure Boot with the Baton Drop flaw. See who it targets, if your Windows PC is at ...

“Character counts don't match” or “Can't find it despite the same name.” How to prevent pitfalls with Japanese characters and strings in apps with the help of AI

When building apps that handle Japanese, these kinds of strange things happen. It should be “up to 20 characters,” but the ...
HackerNoon

How I Built a Secure LaTeX-to-PDF Service for Cloudflare Workers

Learn how to generate PDFs from Cloudflare Workers using Tectonic and Cloud Run, with practical lessons on Docker, security, ...

How to detect USDC deposits? A small receipt monitor built with JavaScript and public RPC

How should we build a mechanism to automatically detect USDC deposits to a wallet?Last time, we extracted the transaction ...