Battisti, FedericaFedericaBattistiCarli, MarcoMarcoCarliPascucci, FedericaFedericaPascucciFehling-Kaschek, MirjamMirjamFehling-KaschekMakri, RodoulaRodoulaMakriBelesioti, MariaMariaBelesiotiChochliouros, Ioannis P.Ioannis P.ChochliourosConstantin, IoanIoanConstantinWang, Xiao-SiXiao-SiWang2022-03-062022-03-062020https://publica.fraunhofer.de/handle/publica/26426910.1561/9781680836875.ch162-s2.0-85138605701This chapter introduces the main challenges for critical infrastructures in the communication sector. Specifically, the chapter will review the current threats that arise upon cyber and physical systems interconnection. At the same time, security strategies exploiting both the features (cyber and physical) of critical infrastructures will be introduced.en620Security and resilience challenges for the critical infrastructures of the communications sectorbook article