The New York Times Web site is grappling with problems created by “an unauthorized advertisement,” but it is unknown how the ads appeared on the site and whether the Web site had been compromised.

The rogue ad warns readers that their computer may be infected with a virus and redirects

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The New York Times Web site is grappling with problems created by “an unauthorized advertisement,” but it is unknown how the ads appeared on the site and whether the Web site had been compromised.

The rogue ad warns readers that their computer may be infected with a virus and redirects

…