"Quebec may be the world leader in prosecuting zapper cases. Since 1997, zappers have figured in more than 230 investigations, according to the tax collecting body Revenu Québec, which has found an active market for the software. In making 713 searches of merchants, Revenu Québec found 31 zapper programs that worked on 13 cash register systems.
Zappers also known as automated sales suppression devices are a new twist on an old fraud. http://www.nytimes.com/2008/08/30/technology/30zapper.html <http://www.nytimes.com/2008/08/30/technology/30zapper.html>
