cybersecurity

Patch Tuesday Decoded, September 2026: A Record Release, Two Zero-Days, and a Bug That Waited Four Years

September's Patch Tuesday set a new record by every count that matters: Microsoft's own tally is 974, the number customers actually need to act on is 964. Two of them were already being exploited before the patches existed.

MECHANICS

Signals and Shutdown: The System Comes Full Circle

Signals are how the kernel and processes communicate asynchronously — a mechanism for process control, error notification, and graceful shutdown. Here is how...

ai-security

AI Agent Finds 21 Zero-Days in FFmpeg for $1,000

A startup's autonomous agent surfaced 21 previously unknown vulnerabilities in FFmpeg — including bugs dormant for over two decades — for roughly $1,000 in...

MECHANICS

IPC: How Processes Talk to Each Other

Process isolation is the design — every process has its own address space, its own file descriptors, its own view of memory. IPC is how isolated processes...