Amazon Web Services Inc. said that it has acquired a startup called Wickr Inc. with an encrypted messaging app used by large enterprises and public sector organizations. AWS didn’t disclose how much it’s paying for the startup. San Francisco-based Wickr previously raised more than $50 million from investors. Amazon said in a statement it would incorporate Wickr in its Amazon Web Services (AWS) division which offers cloud computing and other services. AWS will continue to offer Wickr services including end-to-end encrypted communications which meet certain regulatory requirements. Wickr’s encrypted messaging app of the same name is in use at organizations such as the U.S. Department of Defense, publicly traded financial firm Discover Financial Services and McKinsey & Co. The app uses end-to-end encryption technology to scramble messages, as well as their file attachments, in a way that makes it impossible even for Wickr itself to view their content. Every message is encrypted on the...