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Creators/Authors contains: "Tran-Thanh, Long"

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  1. An important way cyber adversaries ind vulnerabilities in mod- ern networks is through reconnaissance, in which they attempt to identify coniguration speciics of network hosts. To increase un- certainty of adversarial reconnaissance, the network administrator (henceforth, defender) can introduce deception into responses to network scans, such as obscuring certain system characteristics. We introduce a novel game theoretic model of deceptive interac- tions of this kind between a defender and a cyber attacker, which we call the Cyber Deception Game. We consider both a powerful (rational) attacker, who is aware of the defender’s exact deception strategy, and a naive attacker who is not. We show that computing the optimal deception strategy is NP-hard for both types of attackers. For the case with a powerful attacker, we provide a mixed-integer linear program solution as well as a fast and efective greedy algo- rithm. Similarly, we provide complexity results and propose exact and heuristic approaches when the attacker is naive. Our exten- sive experimental analysis demonstrates the efectiveness of our approaches. 
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