Introduction

Although Power Line Communication (PLC) technology has a long history, its broader acceptance and deployment have only gained momentum in recent years, primarily due to its applications in industrial settings. For years, various standardization organizations and industrial associations have been working towards making PLC a widely accepted and secure communication technology. Despite its quick adoption, there has not been much focus on the security of PLC, particularly regarding physical layer techniques, with current measures mostly relying on traditional cryptographic principles. This book provides an in-depth analysis of PLC Physical Layer Security (PLS), examining its techniques, features, and limitations. It also introduces novel metrics and reviews existing ones to deliver a comprehensive security performance assessment of PLC networks. This introductory chapter presents an overview of PLS in PLC and outlines the structure and scope of the remaining chapters of the book.