12日上午对于习惯使用百度搜索的网民来说是一个不寻常的日子——键入百度首页，原本的百度LOGO“蓝色大脚”画面变为了“雅虎的错误”，或是“伊朗网军攻击”字样。

Hackers freeze top search engine in China

China's largest search engine, Baidu.com was temporarily shut down after a cyber-attack Tuesday.

From around 8 a.m. Beijing time, services were interrupted due to external manipulations of its domain name server in the US. Service on the site was down for at least three hours.

A group calling itself the "Iranian Cyber Army" claimed responsibility. There is no evidence though the hackers have links to Iran.