<![CDATA[recaptcha service Resources | ZDNet]]> en-us <![CDATA[Scareware scammers hijack Twitter trending topics]]> Wed, 23 Sep 2009 06:48:35 -0700 <![CDATA[Spammers harvesting emails from Twitter - in real time]]> Wed, 13 May 2009 15:37:29 -0700 <![CDATA[Audio CAPTCHAs easy to crack, according to researchers]]> Mon, 08 Dec 2008 10:59:02 -0800 <![CDATA[If+CAPTCHAs+are+decommissioned+what+comes+next%3F]]> Tue, 26 Feb 2008 11:07:00 -0800