In the absence of adequate protection of personal information, criminals can find a way to conduct identity theft in a variety of ways, including the following: 1. **Data leakage**: Obtaining users’ personal information, such as name, address, ID number, bank account, etc., through hacking, phishing, malware, etc. 2. **Social engineering**: Using psychological manipulation to deceive victims and obtain their personal information. For example, impersonating customer service or technical support personnel to trick victims into providing sensitive information over the phone or via email. 3. **Public information**: Collecting users’ public information from social media, public databases, forums, etc., such as birthdays, family member information, and workplaces, which can help criminals better establish the victim’s identity. 4. **Physical document theft**: Stealing victims’ physical documents, such as ID cards, bank cards, and driver’s licenses, which can easily happen in unsafe environments, such as public places or homes. 5. **Phishing websites**: Creating phishing websites that are similar to legitimate websites to trick users into entering personal information, thereby stealing their identity information. 6. **Vulnerabilities in shopping websites**: Exploiting security vulnerabilities in online shopping platforms and applications to obtain users’ payment information and other personal data. 7. **Risks of shared devices**: Using personal accounts on public computers or unprotected networks may lead to information theft. In order to protect personal information, users should strengthen the management of personal information, use strong passwords, change passwords regularly, enable two-factor authentication, and always be vigilant to avoid sharing personal information in unsafe environments.