Can opening an attachment cause a virus?

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Tags

1. #scripting
2. #allows
3. #horses
4. #opening
5. #contained
6. #messages
7. #simply
8. #trojan
9. #plain
10. #client
11. #activated
12. #safest
13. #virus
14. #viruses
15. #worms
16. #possible
17. #click
18. #attachment
19. #email
20. #message