In public wireless networks, it is possible to intercept other people's sensitive information (such as passwords or bank card information) through technical means, but it is difficult and is subject to various factors and legal restrictions. Hackers or criminals may use the following methods to try to intercept: 1. **Network sniffing**: Use special tools to monitor data packets in the network. If the network is not encrypted, the information may be obtained in plain text. 2. **Man-in-the-middle attack**: The attacker disguises himself as a legitimate access point to trick users into connecting, thereby intercepting and tampering with communication data. However, most public wireless networks now use encryption technology (such as WPA2, WPA3, etc.) to protect data transmission, which increases the difficulty of information being intercepted. In addition, this interception behavior is an illegal network attack and theft, which seriously infringes on the privacy and rights of others and will face severe legal sanctions. In order to protect the security of personal information, try to avoid operations involving sensitive information in a public wireless network environment. If you must do so, use a more secure connection method such as a virtual private network (VPN).