Description: Physical layer security refers to the security measures implemented at the physical layer of a network. This layer is fundamental as it encompasses all the tangible components that enable data transmission, such as cables, switches, routers, and storage devices. Security at this layer involves protecting these elements from unauthorized access, physical damage, sabotage, and natural disasters. The main characteristics of physical layer security include controlling access to facilities where equipment is located, implementing surveillance systems, using locks and alarm systems, as well as protecting cables and connections from interference or tampering. The relevance of this security lies in the fact that without adequate protection at the physical layer, security measures at higher layers can become ineffective. In an increasingly interconnected world, where technologies like IoT, Edge AI, and 5G networks are on the rise, physical layer security becomes an essential aspect of ensuring the integrity and availability of systems and data.
