6 Diagram not needed for submission but you are encouraged to draw the diagram before answering this questions An ACL is shown below (Accounts.xls, (Bob, ), (Eve, }} (Invoices.xls, (Bob, >). (Eve, ), (Alice, )) Needs Grading (Orders.xls, (Bob, ), (Alice, )} (Audit.xls, (Eve, ), (Alice, )} Based on this specification, Alice should not know the contents of Accounts and Eve should not know Orders. However, for the above specification, there are paths through which these users can violate security goals by violating integrity of files. a) What are the 2 sources of possible data leak? (how can a subject leak data to another?) b) Identify exactly 2 access control entries which must be removed to prevent this data leak. c) Explain your answer. (Note there might be more than one correct answer)