Network Security Basics

This course introduces the foundational terminology, concepts, and technologies used to secure IT infrastructure and networks. It covers how threats and vulnerabilities are identified, the methods used to authenticate users and devices, the most common categories of network attacks, the techniques used to harden network devices against those attacks, and the remote access technologies (such as VPNs) that let users and administrators reach corporate resources securely. By the end of this material, you should understand the concepts, protocols, and techniques used to identify and secure the threats that can compromise IT infrastructure.

In IT, there are risks involved in collecting, storing, using, and managing data, services, and employees. This module introduces the high-level concepts and some of the technical detail behind why organizations need IT security, and the terms, concepts, and tools used to help prevent network attacks and alert defenders when they occur. The practices described here represent widely recognized best practices; not every organization implements all of them, since each organization is on its own maturity journey with respect to security.

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