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International Society of Science and Applied Technologies |
| Reliability Analysis of a System Considering Loss Costs for Different Types of Server Attacks | ||||
| Author |
Mitsuhiro Imaizumi
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| Co-Author(s) |
Mitsutaka Kimura
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| Abstract | In recent years, cyber attacks against server systems have become increasingly diverse and sophisticated. It is difficult to prevent these attacks with a single measure alone, and it is effective to combine multiple security measures. In redundant defense, attacks are monitored using tools such as Firewalls and IDS. Since servers are typically exposed to various types of attacks,it is more realistic to model these attacks using multiple probability distributions. This paper formulates three stochastic models for a server system with multiple security tools to monitor multiple types of attacks which are represented by multiple probability distributions. In this model, we consider loss costs that depend on the type of attack. The total expected costs until cyber attacks are detected are derived and optimal policies which minimize them are discussed.
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| Keywords | Security, WAF, IDS, Defense-in-depth, Expected Cost | |||
| Article #: RQD2025-58 | ||||
Proceedings of 30th ISSAT International Conference on Reliability & Quality in Design |