The PCI Council, which manages the Payment Card Industry Data Security Standards is urging developers to support encryption and other protections to protect credit card data in mobile payment acceptance apps. Mobile apps that accept mobile payments should contain functionality to detect and alert on brute force attacks, invalid login attempts and cryptographic key changes, according to the report issued recently by the PCI Council. It's the first guidance of its kind issued by the PCI Council aimed squarely at mobile application developers.