Transport Digital Corporation (TDC) is a solution integrator company that provides hi-tech solutions and services for Singapore Mass Rapid Transit (SMRT). SMRT is a company that manages the daily operations of the country's flagship train services for Singaporeans to commute. These hi-tech solutions and services designed, built, and maintained by TDC for SMRT use, is called TRAIN-NET, an integrated platform application that can manage, control, monitor and report the movement of train coaches all around Singapore. TRAIN-NET system consists of real-time industrial control system which involves both OT (Operational Technology) \& IT (Information Technology) solutions and application. As a Network Engineer in TDC, you need to carry out scheduled Vulnerability Assessment and Penetration Testing (VAPT) towards TRAIN-NET system to ensure the solution is safe from any security attacks, especially related to network based attack. By referring or relating to certain task or process in the operation of TRAIN-NET system, identify ar possible negative side effects or impact or damages that may occur towards the live system, as a rest of your VAPT exercise. Include diagrams to support your answer if necessary