Stop treating your chatbot as a free tier service. Large providers include broad terms of service clauses that grant them a non-exclusive, royalty-free license to use your inputs and outputs for model improvement. That means every creative or sensitive prompt you type is likely training the next iteration. If you care about data sovereignty, stop using closed APIs for critical work. Spin up a local LLM via Ollama or use encrypted client-side inference. Your data should belong to you, not their compute cluster.