The Experts below are selected from a list of 570 Experts worldwide ranked by ideXlab platform
Neda Masoud - One of the best experts on this subject based on the ideXlab platform.
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adversarial online learning with variable plays in the pursuit evasion game theoretical foundations and application in connected and automated vehicle cybersecurity
IEEE Access, 2021Co-Authors: Yiyang Wang, Neda MasoudAbstract:We extend the adversarial/non-stochastic multi-play multi-armed bandit (MPMAB) to the case where the number of arms to play is variable. The work is motivated by the fact that the resources allocated to scan different critical locations in an interconnected transportation system change dynamically over time and depending on the environment. By modeling the Malicious Hacker and the intrusion monitoring system as the attacker and the defender, respectively, we formulate the problem for the two players as a sequential pursuit-evasion game. We derive the condition under which a Nash equilibrium of the strategic game exists. For the defender side, we provide an exponential-weighted based algorithm with sublinear pseudo-regret. We further extend our model to heterogeneous rewards for both players, and obtain lower and upper bounds on the average reward for the attacker. We provide numerical experiments to demonstrate the effectiveness of a variable-arm play.
Yiyang Wang - One of the best experts on this subject based on the ideXlab platform.
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adversarial online learning with variable plays in the pursuit evasion game theoretical foundations and application in connected and automated vehicle cybersecurity
IEEE Access, 2021Co-Authors: Yiyang Wang, Neda MasoudAbstract:We extend the adversarial/non-stochastic multi-play multi-armed bandit (MPMAB) to the case where the number of arms to play is variable. The work is motivated by the fact that the resources allocated to scan different critical locations in an interconnected transportation system change dynamically over time and depending on the environment. By modeling the Malicious Hacker and the intrusion monitoring system as the attacker and the defender, respectively, we formulate the problem for the two players as a sequential pursuit-evasion game. We derive the condition under which a Nash equilibrium of the strategic game exists. For the defender side, we provide an exponential-weighted based algorithm with sublinear pseudo-regret. We further extend our model to heterogeneous rewards for both players, and obtain lower and upper bounds on the average reward for the attacker. We provide numerical experiments to demonstrate the effectiveness of a variable-arm play.
Jay F. Nunamaker - One of the best experts on this subject based on the ideXlab platform.
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exploring emerging Hacker assets and key Hackers for proactive cyber threat intelligence
Journal of Management Information Systems, 2017Co-Authors: Sagar Samtani, Ryan Chinn, Hsinchun Chen, Jay F. NunamakerAbstract:AbstractCyber attacks cost the global economy approximately $445 billion per year. To mitigate attacks, many companies rely on cyber threat intelligence (CTI), or threat intelligence related to computers, networks, and information technology (IT). However, CTI traditionally analyzes attacks after they have already happened, resulting in reactive advice. While useful, researchers and practitioners have been seeking to develop proactive CTI by better understanding the threats present in Hacker communities. This study contributes a novel CTI framework by leveraging an automated and principled web, data, and text mining approach to collect and analyze vast amounts of Malicious Hacker tools directly from large, international underground Hacker communities. By using this framework, we identified many freely available Malicious assets such as crypters, keyloggers, web, and database exploits. Some of these tools may have been the cause of recent breaches against organizations such as the Office of Personnel Manag...
Gregory R Heim - One of the best experts on this subject based on the ideXlab platform.
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impact of cyberattacks by Malicious Hackers on the competition in software markets
Journal of Management Information Systems, 2020Co-Authors: Ravi Sen, Ajay Verma, Gregory R HeimAbstract:The number of Malicious hacking incidents in our increasingly IT-enabled world has been increasing over the years. Conventional wisdom focuses on negative impacts of these Malicious Hacker activiti...
Sagar Samtani - One of the best experts on this subject based on the ideXlab platform.
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exploring emerging Hacker assets and key Hackers for proactive cyber threat intelligence
Journal of Management Information Systems, 2017Co-Authors: Sagar Samtani, Ryan Chinn, Hsinchun Chen, Jay F. NunamakerAbstract:AbstractCyber attacks cost the global economy approximately $445 billion per year. To mitigate attacks, many companies rely on cyber threat intelligence (CTI), or threat intelligence related to computers, networks, and information technology (IT). However, CTI traditionally analyzes attacks after they have already happened, resulting in reactive advice. While useful, researchers and practitioners have been seeking to develop proactive CTI by better understanding the threats present in Hacker communities. This study contributes a novel CTI framework by leveraging an automated and principled web, data, and text mining approach to collect and analyze vast amounts of Malicious Hacker tools directly from large, international underground Hacker communities. By using this framework, we identified many freely available Malicious assets such as crypters, keyloggers, web, and database exploits. Some of these tools may have been the cause of recent breaches against organizations such as the Office of Personnel Manag...