US actress Demi Moore attends a press conference about the launch of the UN Trust Fund for Victims of Human Trafficking at the UN headquarters in New York, the United States, Nov. 4, 2010. [Xinhua/Shen Hong]

 The celebrity pair created the Demi and Ashton Foundation, known as DNA, which aims to raise awareness about child sex slavery worldwide and change the cultural stereotypes about the issue and rehabilitate victims.

The initiative was launched with Twitter, Google, Facebook and Microsoft.

Moore said the technology would enable investigators to identify and pinpoint the location of those buying sex online.

After visiting Cambodia two years ago and seeing girls at the age of five being forced into prostitution, Moore and Kutcher decided to start campaigning against trafficking.

The money put in by the UN trust fund will be used to give legal aid and help rebuild the lives of women and others forced into slavery.