Hi,
We read your proposal and understood that you need Hyperledger based Chat service that transmits secured messages between the users.
Please visit our profile, we are experts in Blockchain, Hyperledger, Cryptocurrency...
We can build the best Messaging Application with Hyperledger Fabric, which ensures the security of the message transfers.
We are the right people to do this, please reach us so that we can show you our portfolios.
Regards,
Vignesh