Amid heightened emotions over the war in Iraq, hacker groups have stepped up defacements of Web sites, the digital equivalent of graffiti. A fairly benign kind of hacker attack, defacements involve breaking into a Web server and posting a message in place of the original Web page. But the rising tensions could portend more damaging activity, security experts say. Recent victims’ Web pages were replaced with antiwar messages, including one with a passage from the Quran calling for retribution against transgressors and text reading: “It’s The New Era Of Cyber War We Promised!” and “the US do what it wants to the world, we will do what we want to the internet/stop the US terrorists and we will stop!” Hackers also targeted the newly launched English-language Web site of al-Jazeera, the Arab satellite-TV network, rendering it intermittently unavailable, the site’s host said. The site, which had posted images of dead U.S. soldiers, was subjected to a so-called denial-of-service attack, in which a deluge of requests overloads the system. Full Story
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