Cyberspace includes the hardware, software, algorithms and protocols of digital communication as well as the people who want to communicate. The connections between all these parts of a communication system form interesting structures and patterns.
Most of the problems in cyberspace, and most of the solutions are very abstract in nature. Thinking abstractly about cyberspace is one of the key foundational skills of a cyber security professional.
You will learn some of the mathematical tools and language that enable you to describe and interpret structures of cyberspace. You will learn to perform calculations using pen and paper, a software calculator, and a spreadsheet.