The Sept. 11 terrorist attacks on the U.S. have not prompted any obvious cyberattacks, ISS concluded.
Overall Internet security has been hampered by a steady tide of denial of service (DoS) attacks, as well as the rise of hybrid attacks -- attack tools that spread through multiple means, such as the Web, e-mail, file sharing and instant messaging, ISS wrote. Worms such as Code Red and Nimda are leading examples of hybrid threats, though there have since been a number of others.
"Internet risk will continue to increase as long as fundamental Internet risk factors are not lessened in some way," ISS wrote. "Attacks are now global in scope and round-the-clock in incidence."
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