Precautions for Internet operation:

1. Do not arbitrarily add strangers as QQ friends or WeChat friends, and do not casually accept their video or voice chat requests to avoid port attacks or personal privacy disclosure;

2. Don't open links to unknown websites at will, especially links to bad websites. When strangers send links to themselves through QQ, try not to open them;

3. Don't open emails and attachments of unknown origin casually, so as to avoid the equipment being infected with viruses, which will make the equipment unusable or the hard disk formatted;

4. Don't click on suspicious websites or pop up advertisements casually to prevent the browser from being unusable due to malicious attacks, and may also disclose sensitive files on personal terminals;

5. Try to set the file extension to open, and confirm the file attributes before opening, so as to prevent malicious files from forging icons and causing the computer to be infected with malicious viruses;

6. Don't post inappropriate comments on public platforms such as Weibo and forums, and surf the Internet in a civilized way.

Precautions for online shopping:

Don't be greedy for bargains: Many people shop online to get bargains. If the goods in the online mall are cheaper than those in the market 10% to 20%, I personally suggest that you can boldly pay the bill and deliver it to your door after he pays the bill.

However, we must pay attention to those products that are ridiculously cheap and several times cheaper. For example, online shopping malls only need four or five hundred or seven or eight hundred products, even if the pictures look so cool and the introduction is so great, I suggest you not to buy them.

Identify merchants: Personally, I think it is best to buy on B2C platform, not C2C platform. It is best to buy in some big online shopping malls, such as Taobao Mall, Baidu Youah, JD.COM Mall, Tencent Paipai, Yi Bei, Dangdang and so on.