Cyber-threats including computer viruses, data breach, and denial-of-service attacks have arisen, and they have to be well-handled. Imperfect prevention of cyber-attacks implies that defense of cyber-attacks is inevitably involved with false alarms. We consider a dynamic game in which a defender...

To analyze strategic interactions arising in the cyber-security context, we develop a new reputation game model in which an attacker can pretend to be a normal user and a defender may have to announce attack detection at a certain point of time without knowing whether he has been attacked. We...