Abstract: The present disclosure relates to system(s) and method(s) for enabling secure and efficient communication between user devices within an organization. Cloud-based messaging services are popular, but organizations hesitate to use them due to the risk of private data residing on public cloud servers. Organizations prefer to host the servers within the organization (on-premise). However, this approach is neither efficient nor cost-effective. The disclosure describes a system and method for secure and efficient communication within an organization that uses an on-premise server to tokenize user messages, i.e. replacing user data in messages with token to generate a tokenized message and sending the tokenized message to the cloud server. In response, the cloud server returns a processed tokenized message, which is then de-tokenized by the on-premise server before forwarding the message to the user. The proposed system is both secure and efficient.

Abstract: The present invention provides methods and systems for delivering Internet-derived content to mobile devices with non-persistent connectivity. The methods include the creation of a small, high-quality, representative subset of content from the Internet, which is delivered to the mobile devices. The systems and methods allow updating of Internet-derived content present on the mobile devices. Further, the systems and methods allow delivery and updating of the Internet-derived content based on user interests. Systems and methods for enabling commercial transactions, using a device with non-persistent connectivity have been provided in the present invention.