Train chatGPT on confidential dataset

thank you and this partly answers my question, however, still for the hypothetical scenario that we would like to fine tune using your guide at (https://beta.openai.com/docs/guides/fine-tuning) I’d really like to know what is the extent of the use of the data we upload for fine-tuning. in other words, is there a risk this data can leak? can you use it to sell it on? i believe having legal clarity around this would greatly enhance the possibility of more vertical applications and many would be interested. so to sum up: how safe is my confidential data that i upload to train the model on. thank you