the user viewing the website to identify whether the data in the communication is correct or incorrect again this may be done for example by presenting one hyperlink to select when the data is correct and another to select when the data is incorrect the data validation module 118 determines based on the selection whether the data identified in the communication is correct or incorrect at 310 the results of the data validation determination are stored in or associated with the data in the database 102 in one example once the data validation module 118 has obtained a key in response to a communication the key is deleted or is disassociated with the data 104 u2032 or 104 to prevent a subsequent response to the communication being made for example this would prevent a user from first responding that the data detailed in a communication was valid and then subsequently responding that the data is invalid referring now to fig4 there is shown a block diagram of a data audit or data validation system 400 according to a further example of the present invention operation of elements of the system 400 is described with additional reference to fig5 and 6 at 502 the data selector 108 selects as previously described a set of selected data 104 u2032 for which the validity.