{"id":367,"date":"2026-08-26T19:13:06","date_gmt":"2026-08-26T19:13:06","guid":{"rendered":"https:\/\/wordpress.cs.vt.edu\/traces\/?page_id=367"},"modified":"2026-08-26T19:31:10","modified_gmt":"2026-08-26T19:31:10","slug":"resonant","status":"publish","type":"page","link":"https:\/\/wordpress.cs.vt.edu\/traces\/resonant\/","title":{"rendered":"RESONANT"},"content":{"rendered":"\n

RESONANT: Reinforcement Learning-based Moving Target Defense for Credit Card Fraud Detection<\/p>\n\n\n\n

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According to security.org, as of 2023, 65% of credit card (CC) users in the US have been subjected to fraud at some point in their lives, which equates to about 151 million Americans. The proliferation of advanced machine learning (ML) algorithms has contributed to detecting credit card fraud (CCF). However, using a single or static ML-based defense model against a constantly evolving adversary takes its structural advantage, which enables the adversary to reverse engineer the defense\u2019s strategy over the rounds of an iterated game. This paper proposes an adaptive moving target defense (MTD) approach based on deep reinforcement learning (DRL), termed RESONANT, to identify the optimal switching points to another ML classifier for credit card fraud detection. It identifies optimal moments to strategically switch between different ML-based defense models (i.e., classifiers) to invalidate any adversarial progress and always take a step ahead of the adversary. We take this approach in an iterated game theoretic manner where the adversary and defender take action in turns in the CCF detection contexts. Via extensive simulation experiments, we investigate the performance of our proposed RESONANT against that of the existing state-of-the-art counterparts in terms of the mean and variance of detection accuracy and attack success ratio to measure the defensive performance. Our results demonstrate the superiority of RESONANT over other counterparts, including static and na\u00efve ML and MTD selecting a defense model at random (i.e., Random-MTD). Via extensive simulation experiments, our results show that our proposed RESONANT can outperform the existing counterparts up to two times better performance in detection accuracy using AUC (i.e., Area Under the Curve of the Receiver Operating Characteristic (ROC) curve) and system security against attacks using attack success ratio (ASR).<\/p>\n\n\n\n

Publications<\/h2>\n\n\n\n

George Abdel Messih, Tyler Cody, Peter Beling, Jin-Hee Cho “RESONANT: Reinforcement Learning-based Moving Target Defense for Credit Card Fraud Detection.” Proceedings of the 11th ACM Workshop on Adaptive and Autonomous Cyber Defense. 2024.<\/p>\n\n\n\n

Paper<\/a><\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

RESONANT: Reinforcement Learning-based Moving Target Defense for Credit Card Fraud Detection According to security.org, as of 2023, 65% of credit card (CC) users in the US have been subjected to fraud at some point in their lives, which equates to about 151 million Americans. The proliferation of advanced machine learning (ML) algorithms has contributed to […]<\/p>\n","protected":false},"author":511,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-367","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/wordpress.cs.vt.edu\/traces\/wp-json\/wp\/v2\/pages\/367","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wordpress.cs.vt.edu\/traces\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/wordpress.cs.vt.edu\/traces\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/wordpress.cs.vt.edu\/traces\/wp-json\/wp\/v2\/users\/511"}],"replies":[{"embeddable":true,"href":"https:\/\/wordpress.cs.vt.edu\/traces\/wp-json\/wp\/v2\/comments?post=367"}],"version-history":[{"count":2,"href":"https:\/\/wordpress.cs.vt.edu\/traces\/wp-json\/wp\/v2\/pages\/367\/revisions"}],"predecessor-version":[{"id":378,"href":"https:\/\/wordpress.cs.vt.edu\/traces\/wp-json\/wp\/v2\/pages\/367\/revisions\/378"}],"wp:attachment":[{"href":"https:\/\/wordpress.cs.vt.edu\/traces\/wp-json\/wp\/v2\/media?parent=367"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}