In some implementations, a method includes interfacing a mobile device including a GUI. User credentials used to execute transactions with contactless devices are securely stored and associated with one or more enterprises. The secure memory includes master credentials and a master security framework that enables enterprises to store or update user credentials and associated security frameworks. Displays associated with the user credentials are dynamically generated and presented through the GUI of the mobile device. Wireless transactions are executed with contactless devices using the selectable user credentials.