This chapter proposes and examines, in an abstract and general way, the “defence lines” of the society (societal system) against the perturbation, namely using robustness, resilience, antifragility, sustainability and autopoieticity, as such concepts were introduced in Chap. 1 . Firstly, of course, it is proved the disturbing signification of the societal generic crisis. More analytical developed are antifragility, sustainability and autopoieticity. A “map” of perturbation compatibility is proposed and examined, based on the logical mark of the generic crisis as advanced in Chap. 2 . In the case of antifragility some detailed analyses are provided regarding the typology of perturbations that a generic societal crisis has the potential to generate. Facing crises is analytically enough examined from the perspective of autopoieticity, a concept relatively rarely convoked in the literature dedicated to societal crises. A proposal is made regarding the concept of recessive perturbation and the procedure to identify (in the abstract case) such a perturbation.