Abstract

Critical national infrastructure sites, such as airports and nuclear facilities, have been subject to a number of airspace breaches from malicious unmanned aerial systems (UASs) in recent years. Not only can these incidents cause major disruptions, but they can have significant financial consequences. This article conducts a short review of security incidents caused by the malicious use of small UASs at airports and nuclear facilities. We conclude that the number of incidents of concern remain high and suggest the increased use of UAS with longer flight times, indicating a move away from commercially available platforms, which have limited flight times. The detection and classification methods presented in this review each have strong benefits but this is not withstanding their own challenges. Hence, this review recommends that more than one sensor type are considered in parallel for live systems. A comprehensive detection and classification system must extend further than typical commercially available platforms if we are to fully realize the threat. We also conclude that while successful countermeasure methods do exist there still remains many policy and legal challenges ahead for their implementation.

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