# messaging\_stream-io **Explanation** The messaging\_stream-io NDM detects the presence of the Stream-IO messaging application on the network. Stream-IO is used for real-time message passing between clients and servers, making it a potentially attractive target for attackers seeking to eavesdrop or intercept sensitive communications. This event can help identify cases where unauthorized parties may be using the application, or where legitimate users may be at risk due to vulnerabilities in the application or its underlying protocols. **What to Look For** To examine the results of the messaging\_stream-io event, customers should look for network traffic associated with Stream-IO. This may include attempted connections to known Stream-IO servers or traffic using the associated protocol (e.g. TCP or UDP on port 80). Additionally, endpoint analysis may reveal the presence of Stream-IO processes or corresponding log entries. Finally, customers should assess the overall security posture of their Stream-IO implementation, looking for any known vulnerabilities or misconfigurations that may put them at risk. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.fusion.vectra.ai/detection-models/library/operational-governance/messaging_stream-io.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.