CCNA Security (640-554) Portable Command Guide

Chapter 1. Networking Security Concepts

The chapter covers the following topics:

Basic Security Concepts

• Assets, Vulnerabilities, Threats, and Countermeasures

• Confidentiality, Integrity, and Availability

• Data Classification Criteria

• Data Classification Levels

• Classification Roles

Threat Classification

• Preventive, Detective, and Corrective Controls

• Risk Avoidance, Transfer, and Retention

Drivers for Network Security

• Evolution of Threats

• Tracking Threats

Malicious Code: Viruses, Worms, and Trojan Horses

• Anatomy of a Worm

• Mitigating Malware and Worms

Threats in Borderless Networks

• Hacker Titles

• Thinking Like a Hacker

• Reconnaissance Attacks

• Access Attacks

• Password Cracking

• Denial-of-Service Attacks

Principles of ...