A systempunkt is a point in such a system vulnerable to disruption by many small interactions, such that a swarm of disruptions and attacks will cascade through the system and collapse it, possibly resulting in financial loss, supply shortages, or destabilization.
But has a more grandiose objective: collapse of a dependent network or state social order.
But whereas a schwerpunkt focuses on a single object of attack, the Systempunkt is representative of network effects.
Descriptively, systempunkt has some similarities to Heinz Guderian's adage "Nicht kleckern, klotzen!"
though it reverses the intent and effect and intends to actualize cascading events through domino type dependencies.