Systems and methods for controlling operations of a computer network (100). The methods involve: generating programming instructions implementing a first mission plan (2100) specifying which identity parameters of packets are to be transformed during specific time periods; executing the programming instructions by at least one node (105) of the computer network to dynamically transform true values, which correctly represent the identity parameters of the packets, into false values which incorrectly represent the identity parameters of the packets; measuring an effectiveness of the computer network's behavior with regard to a recognition and prevention of cyber-attack success resulting from the execution of the programming instructions by the node; and dynamically modifying the first mission plan based on the measured effectiveness.