He blamed ChatGPT after losing two years of research, until he saw his own fault (opens in new tab)

Marcel Bucher, a German university professor, says two years of research drafts and funding requests vanished from ChatGPT after he changed a privacy setting that disables data use for model training. OpenAI told him the data could not be restored under its privacy policy, prompting Bucher to warn in Nature that the tool is unsafe for professional work.