Use ChatGPT inside the firewall of an organization?

I would like to see your opinion on how to apply ChatGPT within the firewall of an organization. For example, answer business related questions based on the information from internal resources, including but not limited to: internal SharePoint sites, internal websites, shared network drives, NAS drives, internal documents, etc., etc., assuming most of the internal information is not available from the public internet world, and is only available within an organization. In other words, is it possible to apply ChatGPT inside an organization (intranet, not internet)? Does ChatGPT has such capability ?

Thanks in advance,

Perhaps their dedicated compute would be suitable for future downsizing and local operation.