GitHub Copilot · Your AI pair programmer

Does GitHub Copilot ever output personal data? Because GitHub Copilot was trained on publicly available code, its training set included public personal data included in that code. From our internal testing, we found it to be extremely rare that GitHub Copilot suggestions included personal data verbatim from the training set. In some cases, the model will suggest what appears to be personal data – email addresses, phone numbers, access keys, etc. – but is actually made-up information synthesized from patterns in training data. For the technical preview, we have implemented a rudimentary filter that blocks emails when shown in standard formats, but it's still possible to get the model to suggest this sort of content if you try hard enough.