An abstract design in the background, and the title of chapter 13 in the foreground. The design consists of alternating dark gray and pale gray regions. Chapter 13. Defending Data. Copyright. Yurii Andreichyn. Shutterstock.

CHAPTER 13Defending Data

© Yurii Andreichyn/Shutterstock.

COMPUTER NETWORK DEFENSE, OR CND, is the defensive component of cyberwarfare. In a world filled with complex environments with multiple forms of connectivity and a multitude of attack surfaces for malicious actors to target, it is also incredibly complex. Defenders have the seemingly impossible job requirement of defending systems, networks, and data in many forms in a massive number of locations without making it unusable.

Defensive operations in cyberwar often have a strong focus on protecting data that are stored on workstations, devices, and in network file storage. Network defenders ...

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