### Question
How is the "cyber defense operation" defined?


### Answer
The term **cyber defense operation** is defined in *6 U.S.C. § 665b* as follows -

> defensive activities performed for a cybersecurity purpose

#### Citation:
  - *6 U.S.C. § 665b*
  - Heading: **CHAPTER 1-HOMELAND SECURITY ORGANIZATION > SUBCHAPTER XVIII-CYBERSECURITY AND INFRASTRUCTURE SECURITY AGENCY > Part A-Cybersecurity and Infrastructure Security**

