How does a VLAN increase security?

Related questions

1. What is a VLAN in simple terms?
2. What is untagged port?
3. What is management VLAN used for?
4. What VLAN 1?
5. What is VLAN and its advantages?
6. How do I stop VLAN hopping?
7. Is VLAN 1 untagged?
8. What is VLAN concept?
9. What is VLAN configuration?
10. What is VLAN segmentation?

Tags

1. #allow
2. #hopping
3. #exploits
4. #answer
5. #configured
6. #network
7. #devices
8. #security
9. #correctly
10. #improve
11. #multiple
12. #number
13. #logical
14. #division
15. #device
16. #physical
17. #vlans
18. #themselves
19. #there