01070nas a2200181   4500000000100000008004100001653001800042653002100060653001800081653001300099653003900112653001300151100001800164245005300182300001000235490000700245520063600252       2020                            d10aCyber defence10acyber operations10aCybersecurity10adoctrine10aroles of the Israel Defense Forces10astrategy1 aLior Tabansky00aIsrael Defense Forces and National Cyber Defense  a45-620 v193 a<p>Cybersecurity in and of itself is not particularly new. Contemporary opportunities to exploit vulnerabilities, however, make this a challenging field. It is only natural that rivals exploit newly created opportunities. Conflict, in which adversarial relationships have a cyber dimension, is here to stay. Accordingly, societies must devise an appropriate organization to protect themselves from intentional threats. This article surveys Israel’s approach, outlining the origins and the evolution of the national cyber defense, prevailing threats, doctrinal challenges, and the role military services play in cyber defense.</p>