Abstract
Security is a major concern in the smart grid technology extensively relying on Information and Communication Technologies (ICT). New emerging attacks show the inadequacy of the conventional defense tools that provision isolated uncooperative services to individual grid components ignoring their real-time dependency and interaction. In this article, we present a smart grid layering model and a matching multi-layer security framework, CyNetPhy, towards enabling cross-layer security of the grid.CyNetPhy tightly integrates and coordinates between a set of interrelated, and highly cooperative real-time defense solutions designed to address the grid security concerns. We advance a high-level overview of CyNetPhy and present an attack scenario against the smart grid supported by a qualitative analysis of the resolution motivating the need to a cross-layer security framework such as CyNetPhy.