摘要：The paper addresses the issues of attacks in cyberspace from the local perspective of computer network and IoT devices of RFID based office system. The rapid development in IT technology has constantly brought out revolutionary changes in the area of office services. The very promising technology for automatic identification is RFID that has changed the manual scenario of office tasks to computerized automated services. However, RFID based systems are vulnerable to various cyberattacks, from simple passive eavesdropping to well-known denial of service (DoS). One of the methods for the analysis of threats is computer modelling and simulation. M&S gives the possibility of quantitative and qualitative analysis as well as forecasting. As a part of the work, the original Java-based discrete simulation package has been developed. The simulation model and relevant software was implemented to simulate DoS attack on a protected server in restricted access administrative office. In contrast to most of existing simulation tools in the field of cyberspace, the simulation package has been designed to model and simulate heterogeneous devices which behaviours might be modified by programming Groovy/Python scripts.
