Fusion: Practice and Applications FPA 2692-4048 2770-0070 10.54216/FPA https://www.americaspg.com/journals/show/3609 2018 2018 Research Scholar, Department of Information Technology, FEAT, Annamalai University, Chidambaram, India P. P. Professor, Department of Information Technology, FEAT, Annamalai University, Chidambaram, India K. Selvakumar Wireless Sensor Network (WSN) signifies a state-of-the-art technology that combines energy-effective sensors with wireless transmission services enabling prompt surveillance and data collecting from the nearby environments. Owing to the intrinsic features of WSNs, they face numerous challenges of security that range from resource-based attacks, like computational overload or energy depletion, to interception, eavesdropping, and tampering. With the hacked data, the attackers can replicate the same sensors and use clones in the corresponding WSNs. This kind of cloning of the sensors, which is comprised of the WSN, is called a clone attack. Since the replicated sensors formed by the attackers have parallel keys and information, therefore the clone attacks have become a great attack for WSN. To defend WSNs against cyberattacks, machine learning (ML) and deep learning (DL) were applied to classify malicious and normal traffic. This study designs an Attack Detection and Mitigation using Deep Learning with an Optimization Algorithm in Wireless Sensor Networks (ADMDL-OAWSN). The main objective of the ADMDL-OAWSN system is to improve security in cloned nodes for the cyberattack detection model. In the primary step, the data pre-processing employs the StandardScalar method to transform input data into a suitable format. Next, the proposed ADMDL-OAWSN model designs a crayfish optimization algorithm (COA) for the subset of the feature selection (FS) to pick the most related features from an input dataset. For the attack classification process, the convolutional neural network and bi-directional gated recurrent unit with attention mechanism (CNN-BiGRU-A) technique have been exploited. At last, the parameter tuning of the CNN-BiGRU-A is applied by the design of the secretary wolf bird optimization (SeWBO) algorithm. Extensive experiments have been conducted to validate the results of the ADMDL-OAWSN system. The simulation results revealed that the ADMDL-OAWSN system emphasized furtherance when compared to other recent systems 2025 2025 184 200 10.54216/FPA.190115 https://www.americaspg.com/articleinfo/3/show/3609