Book 1: Understanding the Software Supply Chain¶

Modern software development has fundamentally transformed how applications are built. Today's software products are assembled from thousands of components sourced from global repositories, open source projects, and third-party vendors. This interconnected ecosystem delivers unprecedented productivity but creates complex webs of trust that attackers increasingly exploit.

This book provides a comprehensive foundation for understanding software supply chain security. We begin by examining how software is actually built today—the ecosystems, package managers, and dependency relationships that form the backbone of modern development. We then explore the threat landscape in depth, tracing the evolution of attacker techniques through detailed analysis of historical attacks. The heart of this book examines attack patterns in granular detail, from malicious package injection to sophisticated social engineering.