More than one third of African country Cameroon's websites pose a security risk to surfers according to a new report by security expert McAfee.

计算机安全专家麦咖啡的一项新报告称，非洲国家喀麦隆超过三分之一的网站使上网者处于危险之中。

Web addresses for Cameroon end ".cm" - attracting careless web users who wrongly type ".com".

Fraudsters take advantage of spelling mistakes and typing errors to set up false sites that may look similar to those the surfer intended to visit.

But they can contain spyware（间谍软件）, adware（恶意广告软件） and malicious（恶意的，恶毒的） downloads instead.

Last year's survey put Hong Kong (.hk) at the top of the riskiest domain names.

However a clampdown（压制，取缔） on domain registration（域名注册） has made it safer in 2009.

Hong Kong Internet Registration Corporation Ltd, which supervises domain registration for .hk websites, said that asking for proof of identity was one measure which had led to a decline in suspicious applications.

So instead, those wishing to exploit web surfers turned their attention to common typing errors.

"The bad guys got good at exploiting bad typing skills," Shane Keats, senior research analyst at McAfee and co-author of the report, told BBC News.

He added that when looking for a host country in which to set up a fraudulent（欺诈的，不正的） domain, scammers（骗子） tend to look for three things: "low cost, ease of registration and lack of regulation".

McAfee surveyed 27 million websites for the report - of which 688,861 were sites hosted by Cameroon. 36.7% were found to be suspicious.

The safest domains surveyed were Japan (.jp), Ireland (.ie) and Croatia (.hr).