The U.S. had the third-highest percentage of observed cyber attack traffic in the third quarter of 2013, and hackers managed to shut down websites more often in the first three quarters of the year than in all of 2012, according to a new report.
Akamai, the Cambridge company that delivers almost one-third of all Web traffic, observed attack traffic originating in 185 countries or regions during the third quarter, up 10 over the previous one, according to the company's "State of the Internet" report.
Thirty-five percent of attack traffic was carried out by computers in China, 20 percent was carried out in Indonesia, and 11 percent was carried out in the U.S., up from 6.9 percent the previous quarter, the report found. What's unknown is where the people who were controlling those computers are from, said David Belson, the report's editor.
"We believe these countries have large numbers of compromised computers that are being used to originate malicious traffic," Belson said.
One of the most common types of attacks is a distributed denial of service — or DDoS — in which thousands of computers controlled by one person overwhelm a website, making it inaccessible, said Charlie Miller, a security engineer at Twitter.
Akamai customers reported 281 such attacks in the third quarter, down from 318 in the previous one. However, the total number of DDoS attacks in the first three quarters of last year — 807 — was greater than the 768 reported in all of 2012.
"It could be the toolkits available to launch these attacks are becoming more easily accessible," Belson said. "Or it could be that more Akamai users are reporting them."
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