The site has been touted as potentially useful to retailers trying to determine where to locate future outlets.

However, Australian Privacy Foundation vice-chair Katina Michael said companies applying profiles could get it dramatically wrong or right.

Michael said that consumers had a choice to make in light of the "big data" trend, which often mischaracterised people.

"We can continue to believe the rhetoric that says: "We are doing no harm to individuals, it is hardly tracking when profiling small neighbourhoods"... or we can begin to demand an end to the on-selling of personal information,"she said.