A Shanghai Internet company is trying to test the security of its website by offering computer hackers 5,000 yuan (€553) if they can break in.

In an unusual one-week trial, the Shanghai Waigaoqiao Free Trade Zone Network Development Co was making the offer for those who could get into its website www.netway.net.cn and obtain documents under the secu.txt section, according to reports.

The website has the following cautionary note, however: "Attempts to break into this site are legal this week only."