Abstract: The invention describes a method of direct debiting a user by means of a mobile communication device comprising a secure element. The method comprises the steps of: receiving at least a part of an identifier provided by means of a backend system by means of the mobile communication device; storing the transmitted identifier in the secure element; initiating a data connection between the mobile communication device and/or the secure element and a reader device for preparing a transaction; transferring at least a part of the transmitted identifier to the reader device; verifying the identifier to be transferred to the reader device or transferred to the reader device in order to release a payment by means of a bank system. The invention further describes a mobile communication device and a system to perform the method in order to enable secure payment by means of a mobile communication device.

Abstract: Certain embodiments of this disclosure include methods and devices for adjusting a graphical user interface. According to one embodiment, a method is provided. The method may include obtaining external stimulus data including data associated with at least one user interface element of a plurality of user interface elements making up a graphical user interface (GUI); analyzing the external stimulus data to detect a presence of a GUI presentation adjustment condition; in response to detecting the presence of the GUI presentation adjustment condition, generating GUI presentation adjustment condition data including data describing the GUI presentation adjustment condition; and adjusting presentation of at least one of the plurality of user interface elements based on the GUI presentation adjustment condition data.