A group of hackers temporarily wiped clean CBS.com, in what seemed to be further retaliation for the government shutdown last week of file-sharing site Megaupload.com.
Several Twitter accounts linked to Anonymous, a loosely organized collective of hackers, posted messages claiming responsibility for the hack, some of them mentioning "#OpMegaUpload," shorthand for Operation Mega Upload. At least one suggested Fox would be targeted next.
The group claimed responsibility for hacking the Justice Department's website earlier in the week after federal officials shut down Megaupload.com.
For a short period, visitors to CBS.com were presented with a single blank HTML file around mid-day on Sunday. The site has since been restored.

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