On May1, hackers exchanged bad remarks in which the official White House website was defaced by a huge amount of e-mail garbage. On May5, the White House website fell victim to a denial of serviced attack that blocked access to the site for more than two hours.
The Computer Network and Information Security Management Office told web operators an average of 100 sites a day had seen some more form of attack.
The best title of the passage is _____.
a. Sino-US plane collision.
b. Sino-US Hackers Fighting Cyber war
c. Cyber war continuing
d. Wang wei, our best son
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