# vpn\_usage\_internal\_external **Explanation** vpn\_usage\_internal\_external is a Netography Fusion Portal security event designed to detect VPN usage exiting a customer's network. **What to Look For** When examining the results of the vpn\_usage\_internal\_external NDM, customers should look for any traffic leaving their network that shows signs of VPN usage. This could include unusual traffic patterns or connections to known VPN endpoints. Customers should examine network logs and endpoint device activity to determine the source of the VPN connection and take appropriate remedial action if necessary. **Related MITRE ATT\&CK Categories** [Exfiltration: Exfiltration Over Alternative Protocol, Technique T1048 - Enterprise](https://attack.mitre.org/techniques/T1048) --- # 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/vpn_usage_internal_external.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.