The Financial Action Task Force (or FATF) on Money Laundering is an organization of countries that all work together to stop people from illegally getting money. It's like a big group of countries all working together to stop money from being stolen or laundered (which is where people hide the money they stole so they can't get caught). They help governments make laws to stop people from doing bad things with their money, like hiding it so no one can find it. They also help governments make sure banks are following the laws and not letting people do bad things with their money. In other words, the FATF works to make sure people don't do anything illegal with their money.