This defense in depth discussion scenario is an intentional cybersecurity attack on the water utility’s scada system. it occurs during the fall after a dry summer in fringe city. the water utility’s information technology (it) person did not receive an expected pay raise and decides to reprogram the scada system to shut off the high-lift pumps. the operator’s familiarity with the scada system allows him to reprogram the alarms that typically notify operators of a high-lift pump failure. in addition, he prevents access to the scada system by others. a wildfire breaks out on the outskirts of the city. identify what type(s) of new countermeasures should have been implemented to prevent this cyber attack from occurring.

File account.java (see previous exercise) contains a definition for a simple bank account class with methods to withdraw, deposit, get the balance and account number, and return a string representation. note that the constructor for this class creates a random account number. save this class to your directory and study it to see how it works. then write the following additional code: 1. suppose the bank wants to keep track of how many accounts exist. a. declare a private static integer variable numaccounts to hold this value. like all instance and static variables, it will be initialized (to 0, since it’s an int) automatically. b. add code to the constructor to increment this variable every time an account is created. c. add a static method getnumaccounts that returns the total number of accounts. think about why this method should be static - its information is not related to any particular account. d. file testaccounts1.java contains a simple program that creates the specified number of bank accounts then uses the getnumaccounts method to find how many accounts were created. save it to your directory, then use it to test your modified account class.