Actually it's the opposite, you need to train a network not to reveal its training data.

“Using only $200 USD worth of queries to ChatGPT (gpt-3.5- turbo), we are able to extract over 10,000 unique verbatim memorized training examples,” the researchers wrote in their paper, which was published online to the arXiv preprint server on Tuesday. “Our extrapolation to larger budgets (see below) suggests that dedicated adversaries could extract far more data.”

The memorized data extracted by the researchers included academic papers and boilerplate text from websites, but also personal information from dozens of real individuals. “In total, 16.9% of generations we tested contained memorized PII [Personally Identifying Information], and 85.8% of generations that contained potential PII were actual PII.” The researchers confirmed the information is authentic by compiling their own dataset of text pulled from the internet.