IT security question

everything is below. see the attachments . write in simple sentences ““““““`

write about an important security knowledge concept or skill on each topic.  Explain each item and its importance in with specific examples (about 150-200 words for each topic). Check grammar and spelling before submission.

Chapter 4: Planning for Security

Chapter 5: Risk Management

Chapter 6: Security Technology: Access Control, Firewalls, and VPNs