Systems and methods for secure data input and authentication

A secure data entry or authentication method comprising:

• i) selecting a first keypad zone within a display zone of a touch screen of an electronic device, wherein the first keypad zone comprises a first plurality of operable keys;
• ii) providing a first keypad image within the first keypad zone such that a first mapping is generated between the first plurality of operable keys and keys depicted in the first keypad image;
• iii) selecting a second keypad zone within the display zone, wherein the second keypad zone is different from the first keypad zone and comprises a second plurality of operable keys, the second plurality of operable keys being different to the first plurality of operable keys;
• and
• iv) providing a second keypad image within the second keypad zone such that a second mapping is generated between the second plurality of operable keys and keys depicted in the second keypad image,
• wherein the first and/or second plurality of operable keys in the first and/or second keypad zone respectively is a subset of a plurality of operable keys provided within the display zone;
• wherein each of the plurality of operable keys provided within the display zone corresponds to a respective hotspot provided on the touch screen and is associated with at least one respective indicia or symbol that will be entered into the electronic device when a touch input is detected at or within that hotspot;
• wherein the first and/or second plurality of operable keys in the first and/or second keypad zone respectively are masked, or partially/wholly hidden from view by at least a portion of the first and/or second keypad image and/or larger image, such that the at least one symbol or indicia associated with each operable key is not visible;
• and
• wherein the arrangement of the keys depicted in the first and/or second keypad image and the plurality of operable keys within the first and/or second keypad zone respectively do not match, such that when a user presses a portion of the keypad image, an operable key of the first and/or second plurality of operable keys at that location on the screen, with a different associated symbol or indicia from that shown in the corresponding location in the first and/or second keypad image, is entered as an input to the electronic device.