Cyber crooks are trying to cash in on fascination with the US presidential race by sending trick email promising a sex video starring Barack Obama, according to Sophos computer security firm.

• 受骗的收到邮件的人点击里面的一个链接后，发现一个貌似家庭自制的性爱录像。其实，里面的内容很本没有奥巴马，而是会悄悄地给人们的电脑装上恶意软件。