A Novel Attack-and-Defense Signaling Game for Optimal Deceptive Defense Strategy Choice

Table 4

Notation descriptions.

Notation	Description
	Expected utility function of the attacker
	Expected utility function of the defender
: cost of attack	Cost of the attacker using various attack measures
: cost of defense	Cost of the defender using various defense measures
: cost of system compromised	System loss cost function with the defensive strategy and the attack strategy as parameters, which indicates the loss to the defender’s system when it is compromised, namely, the benefit to the attacker of successfully compromising the system
: cost of deception signal	Cost of a signal using deception, namely, the cost that is incurred by the defender in sending a spoofing signal that does not match its type to deceive the attacker