How do college students guard against online fraud?

1, the most important thing is not to reveal privacy, and not to register information with your mobile phone and ID number on some irregular websites. 2. The current mobile phone has high security performance. If it is a harassing call, it will be displayed. If you see a harassing call, don't hesitate to hang up and don't answer it. 3. If a friend borrows money from you on chat software, it's best to call the other party to confirm, listen to his voice, it's your friend's voice, confirm that he really borrows money from you on chat software, and then consider whether to borrow it. 4. If you receive a phone call saying that something happens at home and you need money, you should call back first to confirm that it is true and then make money.