A. For the assigned paper: 1. Write a one-paragraph summary of the paper. 2. Comment on one thing you think is particularly worth noting and/or discussing about the paper. B. Answer the following questions: 1. Pick your favorite security enforcement mechanism. How to set the appropriate security policy for the enforcement mechanism to enforce? What assistance can you provide to users to set the appropriate security policy? 2. Sandboxing provides isolation and can be viewed as a type of security abstraction. Describe your favorite examples of security abstraction.