Network encryption secures the route to an AI service, but the prompt itself is the payload — and the provider is its intended recipient.
For many users, switching on a VPN before opening ChatGPT or Claude feels like drawing the curtains. The reassurance is only partly earned: the tunnel changes who can watch the traffic pass, not what the traffic contains.
A VPN performs one job with precision: it conceals where a connection originates, hiding the user's location and network identity from outside observers. What it cannot conceal is the substance of the exchange, because the AI service at the other end is the intended recipient of every prompt. Network encryption governs who can intercept data in transit; it does not govern who is meant to read it. In a chatbot session, the reader is, by design, the provider of the model. That is the dividing line TechRadar draws — a VPN masks where you are, not what you share.
The gap between the two protections is wider with AI assistants than with routine browsing. A typical web request asks a server for content; a chatbot request hands the server the content — the question, the context, the working material a user feeds in. ChatGPT and Claude cannot respond without seeing all of it, so no amount of tunneling keeps the conversation away from them. The asymmetry is easy to miss because both protections look identical from the outside, rendering traffic unreadable to bystanders on the same network. The difference only becomes visible at the destination, where encrypted transport ends and the model's input begins.
The takeaway is unglamorous but firm: treat a VPN as a location shield rather than a confidentiality guarantee, and assume that whatever reaches a chatbot's input box has also reached the company behind it.
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