This thesis investigates an implementation of a bistatic OFDM-based ISAC system based on 5G NR parameters and studies how it is affected by replay based deceptive jamming attacks. The aim of the research is to examine the feasibility of such an ISAC system while also scrutinising its weaknesses and vulnerabilities. The implemented model was evaluated based a multitude of metrics, such as detection performance, and estimation of DoA, range, and velocity of targets. Monte Carlo simulations were employed to give statistical rigour to the findings of these evaluation.Results indicate that the implemented model is valid as a sensing system and performs well for both a single-frame and multiple-frame scheme. However the results also show that the system is very sensitive to disturbances from a deceptive jammer.