There are several ways that people who use private data to write false stories may use the following methods to collect and use this information: 1. **Web scraping**: Using automated tools to scrape user information from social media, forums, and other public websites. Although this information may be public, it can be used together to dig out personal information. 2. **Social engineering**: Trick the target into revealing personal information by pretending to be a trustworthy individual or organization. This may involve phone calls, emails, or face-to-face communication. 3. **Data leakage**: Using data leakage information purchased on the public or black market, including usernames, passwords, email addresses, etc., to collect more details about individuals. 4. **Surveillance software**: Infiltrating the target's device through malware or spyware to obtain their private chat history, files, and other data. 5. **Geolocation data**: Collecting users' location information through social media check-in functions or mobile phone applications to understand their daily activities and social circles. 6. **Exploiting third-party data**: Cooperating with other companies or institutions to purchase or exchange data to obtain more comprehensive personal background information. 7. **Misleading reports and fake news**: Distorting or fabricating existing information, and combining a small amount of real information to create false reports. 8. **Social media analysis**: Analyzing users' behavior and content on social media to obtain their interests, opinions and potential weaknesses. 9. **Purchasing private data**: Purchasing private data through legal or illegal means to obtain in-depth information about the target. The above methods not only violate personal privacy, but may also lead to legal issues and ethical disputes. For such behavior, society should strengthen laws, regulations and ethical norms to protect personal privacy.