Electronic commerce experts from the US, China and Australia this week launched a United Nations-sponsored secure trading system for small and medium enterprises that will enable traders to know who they are dealing with and discern if electronic messages have been altered. The system, called secure electronic trading opportunity (SETO) expands on the UN’s three-year-old electronic trading opportunity (ETO) program, which has been operating from Melbourne’s RMIT University’s UN Trade Point Development Centre.Since February, the SETO network has been piloted between trade points in Beijing, Minnesota and Melbourne. It is expected that over the next year, the pilot system will extend to around 20 countries.