Implementations of the present disclosure include methods, systems, and computer-readable storage mediums for providing secure mobile data sharing. Actions can include: receiving, by the one or more processors, a request for secure mobile data sharing, the request being received from a mobile device and comprising a security definition; obtaining, by the one or more processors, based at least in part on the security definition of the request: a decryption key, a recipient identifier, and a security policy; receiving, by the one or more processors, a decryption request from a third-party device, the decryption request comprising an identifier distinguishing the third-party device as a recipient of an encrypted message corresponding to the decryption key; and providing the decryption key to the third-party device in response to validating the decryption request.