mechanics

The Bootloader: Before the Kernel Exists

Before Linux can run, something else has to find it, load it into memory, and hand over control. That process starts with a CPU executing from a fixed address in firmware — with no kernel, no filesystem, and no concept of a process.

cybersecurity

Signed, Delivered, Compromised

DAEMON Tools installers downloaded from the official website between April 8 and May 5 were backdoored — signed with the developer's own certificate,...

cybersecurity

When the Firewall Is the Vulnerability

CVE-2026-0300 gives an unauthenticated attacker root-level code execution on PAN-OS firewalls — no credentials, no interaction required. Here's how the Captive...

mechanics

Why a Linux Binary Won't Run on Windows

A program compiled for Linux won't run on Windows, and a macOS binary won't run on Linux. The reason isn't the code — it's what the binary expects the operating...

mechanics

What Your Computer Is Doing Right Now

Your machine is running hundreds of processes right now. Memory is being translated, interrupts are firing, the scheduler is switching contexts faster than you...

infrastructure

One Deleted Line of Code Rerouted the Internet

On January 22, 2026, nine lines were removed from a configuration file in Miami. Twenty-five minutes later, Cloudflare's engineers were manually reverting the...