As I said at the beginning of this chapter, securing your network should be one of your main concerns as an IT professional. But security is done for steps—you must secure the data of whatever company you work in—as it is their most valuable asset.
The concept here is called CIA, which stands for Confidentiality, Integrity, and Availability. We must keep the data within the confines of the company or devices they reside in. It must remain confidential, it should be treated as Top Secret. Imagine you work for a company that invents a product for cars that never breaks, or gets worn down, it would never have to be replaced. Well, the information would make that company millions if not billions of dollars. Not only would industrial spies want it, even internal employees would love to get their hands on it and sell it to the highest bidder. So you...