Unity Connection supports secure messaging, please take a look to the admin guide below and see if this will cover
your customers' requirement:
thanks for the reply - have seen that before. Do you know if the messages are encrypted while on the box i.e. with respect to someone interrogating the file system ?
Oh okay…I don’t even see this part documented anywhere so it was good for us to let the customer know. Nowhere do I see in the documents that it mentions whether the recordings can be stored encrypted or not.