Why does Linux have no viruses?

Related questions

1. Does Linux need virus protection?
2. Is Fedora good for development?
3. What is Red Hat subscription?
4. Why Linux is most secure operating system?
5. Why Linux is more stable than Windows?
6. Which Linux does Linus use?
7. Which is better Fedora or Ubuntu?
8. What is difference between Ubuntu and Mint?
9. Is Fedora bleeding edge?
10. Is Red Hat free?

Tags

1. #running
2. #system
3. #general
4. #viruses
5. #actually
6. #statistically
7. #infected
8. #unless
9. #issue
10. #however
11. #linux
12. #harmful
13. #ubuntu
14. #prone
15. #operating
16. #sensible
17. #modern