This is documented in Who can view chat history in HipChat Server - depending on the scope of your question, there are two main aspects:
Chat history, messages, and files details the operator point of view - chat messages in general are stored in HipChat Server's virtual machine in the
Earlier this year we made the difficult decision to discontinue our team messaging tools, Stride and Hipchat. The end of life date for Stride and Hipchat Cloud is quickly approaching - February 15, 2...
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