Using network resources to obtain other people's private information is unethical and may be illegal. The following are some technical means that may be abused: 1. **Web crawlers**: excessive and unauthorized crawling of website data containing personal sensitive information, such as crawling internal employee information pages of enterprises, web pages containing personal privacy in specific institutions, etc. 2. **Data mining**: through deep mining of massive public network data, trying to piece together detailed private information of specific individuals, such as analyzing personal identity, address and other privacy from fragmented information on social media. 3. **Social engineering technology**: using false identities to establish connections on social networking platforms and other platforms to induce others to disclose private information, such as pretending to be customer service to defraud user account passwords, ID numbers, etc. 4. **Exploiting website vulnerabilities**: detecting and exploiting security vulnerabilities in websites in data storage and transmission, illegally obtaining user private information stored therein, such as passwords, contact information, etc. These behaviors seriously infringe on the privacy of others, violate laws and regulations, and will cause great harm to individuals and society, and should be resolutely resisted.