In theory, if public wireless networks do not take adequate security measures, there is indeed a risk of data being intercepted during transmission. For example, in some wireless networks that do not use encryption or use weak encryption protocols, attackers may use methods such as man-in-the-middle attacks and ARP spoofing to capture data packets and obtain sensitive information (such as passwords, bank card information, etc.) transmitted by users on the network. It should be noted that: 1. These technical means are mainly studied and tested for the discovery and prevention of network security vulnerabilities, with the aim of improving the overall security protection level. Any use of such means to arbitrarily intercept and steal other people's information is illegal and will be subject to strict legal sanctions. 2. The current mainstream secure communication technologies (such as HTTPS, VPN, and other data encryption methods) greatly reduce the possibility of sensitive information being intercepted in public networks. This is why it is recommended that users use encrypted connections as much as possible in public wireless network environments to protect personal privacy and data security. Please be sure to comply with laws and regulations and network ethics. If you are interested in network security, it is recommended that you conduct research within the scope of legal authorization and improve network security awareness and protection capabilities through formal channels.