For a list of Cyber Attacks See the Links Below

1. Cyber Attack on U.S. Government Computers

2.  Federal Website Knocked Out by Cyber Attacks

3.  Cyber Attacks by North Korea

4.  Experts Work to Unravel Korean attack on U.S. Government Computer Systems

5.  Staged Cyber Attack Reveals possible threat for U.S. (CNN)

6.   Are you Protected from Cyber Attacks (You Tube)

7.   U.S. Airforce Pushs training For Cyber Warriors