Research Article

Study on Stochastic Differential Game Model in Network Attack and Defense

Table 1

Main parameters and descriptions.

ParameterDescription

Attackers’ required attack cost before defensive investment
Attackers’ required attack cost after defensive investment
Probability of successful attack before defensive investment
Probability of successful attack after defensive investment
Defenders’ original defensive ability (original assets)
Defenders’ increased defensive ability (defensive investment)
The social rewards for defenders’ public information
The attackers are punished for the attack
The loss suffered by the defenders after being attacked
The total return from a successful attack by the attackers