Cignifi: Cignifi gets Series B funding from Omidyar Network, American Express

Cambridge-based Cignifi Inc., a startup that's developed a way for financial institutions to assess credit risk in emerging countries based on mobile phone usage, recently raised an undisclosed amount of Series B funding. The latest round of funding was led by Omidyar Network, a philanthropic investment firm based in Redwood City, Calif. established by eBay founder Pierre Omidyar and his wife, Pam, as well as American Express and other existing investors. The funding will be used to expand its…