As a newly appointed network administrator, you have been requested to provide a presentation that will be shown to all employees to stress the importance of securing the organization's data against external threats. Using the library, the Internet, and other materials, prepare a PowerPoint presentation that outlines the following items: Slide 1: Title slide Slide 2: Presentation overview Slides 3–4 : Identify and outline the function of digital certificates. Slides 5–6 : Explain the concepts of encrypting data and securing e-mail transmissions. Slides 7–8 : Explain what is meant by social engineering and the methods that must be taken to secure against these types of attempted attacks. Slides 9–10 : References .