In today's interconnected world, the Internet is no longer a tool. Rather, it is a service that helps generate income and employment, provides access to business and information, enables e-learning, and facilitates government activities. It is an essential service that has been integrated into every part of our society. Our experience begins when an Internet Service Provider (ISP) uses fixed telephony (plain old telephone service), mobile-cellular telephony, or fixed fiber-optic or broadband service to connect us to the global network. From that moment on, the ISP shoulders the responsibility for the instantaneous, reliable, and secure movement of our data over the Internet.