From the group’s perspective, a very good way to stop this from happening in the future would be that the bank makes sure to not only monitor net exposure of their traders but also gross exposure. Gross exposure is the sum of the long positions and short positions of a trader. If Société Générale had looked at Kerviel’s gross exposure they would have seen that he had exposed trades that was much bigger than what he was supposed to have. This would hopefully have alarmed them so that they would have checked his positions and discovered his trades much earlier [8].