3. Instead of an online bank, suppose that Alice provides an online chess playing service known as Alice's Online Chess (AOC). Players, who pay a monthly fee, log into AOC where they are matched with another player of comparable ability. a. Where (and why) is confidentiality important for AOC and its customers? b. Why is integrity necessary? c. Why is availability an important concern? 6. RFID tags are extremely small devices capable of broadcasting a number over the air that can be read by a nearby sensor. RFID tags are used for tracking inventory, and they have many other potential uses. For example, RFID tags are used in passports and it has been suggested that they should be put into paper money to prevent counterfeiting. In the future, a person might be surrounded by a cloud of RFID numbers that would provide a great deal of information about the person a. Discuss some privacy concerns related to the widespread use of RFID tags. b. Discuss security issues, other than privacy, that might arise due to the widespread use of RFID tags