To prevent cheating, college students should first raise their awareness of self-protection, do not click on links of unknown origin, and do not scan QR codes of unknown origin. Then don't be greedy for petty gain and petty gain. As the saying goes, being greedy for petty advantages will suffer big losses. Liars will use this weakness to set traps to trick college students into falling for it. There are also some scammers who pretend to be public security law or acquaintances to come to you to transfer money or borrow money from you. Don't believe it easily at this time. You'd better call to confirm, and beware of being cheated. Finally, remember that anyone who asks you to transfer money should think twice before you do. Be sure to check it out. I suggest you download the anti-fraud APP.