国庆出行购票，网警送你一份网络安全指南！

Group 1 - The article emphasizes the importance of being cautious while booking travel tickets during the National Day holiday, highlighting various scams and security risks associated with ticket purchasing [1][2][4][5][7] - It warns against using counterfeit apps that may steal payment information and suggests only using official channels like 12306 and recognized travel platforms [1] - The article advises against clicking on suspicious links, especially those related to train cancellations, as they may lead to phishing attempts [2] Group 2 - It highlights the risks of connecting to public Wi-Fi networks, which may be traps set by hackers, and recommends using mobile data for payments instead [4] - The article stresses the importance of privacy protection, urging users to verify website privacy policies before submitting sensitive information and to regularly clear browser data [5] - It provides tips for secure payment practices, such as ensuring the website URL starts with "https" and confirming the merchant's name before completing transactions [5] Group 3 - The article discusses password security, recommending the use of complex passwords, enabling two-factor authentication, and regularly changing passwords to enhance account security [7] - It warns against saving passwords on public computers and suggests selecting "never" when prompted to save passwords [7]