Changsok Yoo

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The security risk of internet banking has increased rapidly as internet banking services have become commonly used by the public. Among the various security methods, OTP (one time password) is known as one of the strongest methods for enforcing security, and it is now widely used in internet banking services. However, attack methods which can detour OTP(More)
As malicious traffic from botnets now threatens the network infrastructure of Internet Service Providers (ISPs), the importance of controlling botnets is greater than ever before. However, it is not easy to handle rapidly evolving botnets efficiently because of the highly evolved detection avoidance techniques used by botnet makers. Further, nowadays,(More)
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