Evaluation of IoT Network Security Against Botnet Attacks Through Simulation in NetSim
Andrei Claudiu Frâncu, Gabriel Predușcă, Liana Denisa Cîrciumărescu, Nicoleta Angelescu, Dan Constantin Puchianu · 2025
This study investigates the performance degradation of IoT networks under distributed denial-of-service (DDoS) attacks, using the NetSim simulator to model botnet-based threats. Four scenarios were simulated: one without attackers and three with 1-3 malicious nodes launching UDP flooding. The results show that the throughput dropped by up to 67% and the latency increased by over 350% as the number of attackers rose. These findings highlight the vulnerability of IoT networks in the absence of protection mechanisms and underscore the importance of security-by-design principles. Future research will integrate detection and mitigation algorithms into the simulated environment.