PostFinance has always placed an emphasis on independent customers. This approach is clearly appreciated, as it has around 1.8 million e-banking customers across Switzerland – more than any other bank – who perform their banking and payment transactions on the e-finance portal. Secure user authentication is extremely important here. To log into e-finance, users generate their access codes using yellow reader devices. These devices are usually kept in a single, fixed location. Customers therefore do not usually have any access to their accounts while on the move or when at work. Particularly for customers who travel a great deal, those responsible at PostFinance sought a highly secure mobile authentication solution.