The ramifications of this is pretty huge, I mean mortgage applications contain a lot of sensitive data such as persons income, current place of residence, date of birth etc. To put simply in laymen's terms with this application potentially someone for example could commit fraud, target the user for burglary. Some people here don't understand this and are naive to think nothing may come of it. The risk far outweighs the benefits. Hence you should never put anything of sensitive and of financial nature in the cloud.