Conclusion

After the three examples mentioned in the blog, we discovered that there are many kinds of malicious softwares. Technological advances everyday, we do not have an exactly solution to prevent all malware, but there are still some ways for you to decrease the chances of getting malicious softwares.

1. Install the antivirus software and firewall.
2. Keep getting the latest update to protect your computer(s)' security.
3. Do not open or download the unknown files, emails and programs.

Hope these articles are useful and those methods can help. Thank you.

"How to help protect your computer from malware" n.d. In Microsoft. Retrieved March 20, 2014 from
 http://www.microsoft.com/security/resources/malware-whatis.aspx