In November of 2013 our research team spent some time reverse engineering popular mobile applications to get some practice reversing interesting apps. After reviewing these types of apps we noticed a trend that some messaging apps did not take any steps to ensure confidentiality of their locally stored messages. In light of similar issues having recently been deemed a concern on other platforms we thought wed publish one of our examples to increase user awareness of such behaviors. The Outlook.com free email services mobile client offered by Microsoft is described as being created by Seven Networks.”]
Source: https://blog.includesecurity.com/2014/05/mobile-app-data-privacy-the-outlook-com-example/