  Edge computing is a paradigm that shifts data processing services to the
network edge, where data are generated. While such an architecture provides
faster processing and response, among other benefits, it also raises critical
security issues and challenges that must be addressed. This paper discusses the
security threats and vulnerabilities emerging from the edge network
architecture spanning from the hardware layer to the system layer. We further
discuss privacy and regulatory compliance challenges in such networks. Finally,
we argue the need for a holistic approach to analyze edge network security
posture, which must consider knowledge from each layer.
