The MIFOS project, a platform for Microfinance, is offering a bug bounty. They write in, "We are an open source development effort that seeks to create a global business model for open source banking software for the microfinance industry. This industry serves tens of millions of people, largely in underdeveloped countries, who previously were considered unbankable. To encourage participation, we are offering to pay $ USD to the first java developer to submit an acceptable code patch to our project for one of two features ($750 and $150)."