Prevention of shoulder surfing

A method comprising:

• detecting at a mobile device, an attempt by a user to access protected data;
• determining an approximate angle of orientation of a mobile device;
• receiving information about a surrounding environment of the mobile device from a sensor integrated with the mobile device, wherein the sensor comprises a camera or a microphone;
• selecting one of first, or second, input key layouts, based upon the approximate angle of orientation, wherein, the first input key layout comprises a standard layout of alphanumeric characters, and the second input key layout comprises a first disordered layout of the alphanumeric characters;
• displaying the selected one of the first or second, input key layouts at a graphical user interface of the mobile device, and suggesting an angle at which a user should hold the mobile device when entering sensitive information based on the information received about the surrounding environment.

A system comprising:

• a detector operable to detect at a mobile device, an attempt by a user to access protected data and to detect an approximate angle of orientation of a mobile device;
• a processor configured to execute program instructions to:
• select one of first and second input key layouts, based upon the approximate angle of orientation, wherein the first input key layout comprises a standard layout of alphanumeric characters and the second input key layout comprises a disordered layout of the alphanumeric characters;
• receive information about a surrounding environment of the mobile device from a sensor integrated with the mobile device, wherein the sensor comprises a camera or a microphone;
• and determine an angle at which a user should hold the mobile device when entering sensitive information based on the information received about the surrounding environment;
• and a graphical user interface configured to display the selected one of the first and second input key layouts, wherein the graphical user interface is configured to display the second input key layout by displaying the alphanumeric characters in a jumbled manner such that the alphanumeric characters are out of alphanumeric order on the graphical user interface.