What is a "trojan horse" in the context of computer security? (provide a reference) [2 pts]

b. What are the three most common practices a business should follow to protect its networks from cyber-attacks? [3 pts]

c. Why is it usually difficult to assign moral responsibility for computer system failures to a particular individual? [2 pts] What are the implications for the organizations that create these systems? Support your answer using a recent credible source. [3 pts]