First, password security common sense

1. Set a password long enough for your user name. It is best to use mixed case and special symbols, and don't use pure digital passwords for easy memory.

2. Don't use information related to yourself as a personal password, such as your or your boyfriend's (girlfriend's) birthday, phone number, ID number, house number, abbreviation, etc., which is easy to be guessed by people who know you very well.

Don't use English words with special meanings as passwords. It is best not to use words as passwords. If you want to use it, you can add a plural s or symbol after it, which can reduce the chance of being guessed by the dictionary.

4. Don't set all passwords to be the same. You can add a prefix to each password.

Don't write down your password in case you forget it. It is foolish to write the password anywhere except in the brain.

6. Don't stick to a password, change it frequently, especially when you encounter suspicious circumstances.

Second, get information online.

1. Don't work in front of the computer for more than 1 hour at a time.

2. Don't get your eyes too close to the screen and sit up straight.

3. The screen settings should not be too bright or too dark.

4. Breathe the fresh air outside the house properly.

5. Don't buy online at will.

Third, middle school students make friends online.

1. Don't tell your real name and address, telephone number, school name and close friend information.

2. Don't meet with netizens.

If you must meet, you'd better go to a crowded place.

4. Ignore online suitors.

5. Do not refute or answer vulgar netizens, and treat them in a silent way.

Please learn the skills of self-protection:

There are many anonymous friends online, so don't go to the appointment alone.

Online personalities are hard to distinguish, and there is nothing wrong with being cautious.

Fourth, surfing safety knowledge

1, try not to download the program of personal site, because this program may be infected with virus or have a back door.

2. Don't run unfamiliar executable files, especially some seemingly interesting games.

3. Don't casually add strangers to friends lists such as qq or WeChat, and don't casually accept their chat requests to avoid port attacks.

4. Don't open the email attachment of strangers casually, because it may be malicious html or javascript code (it has been found that html code can format your hard disk). If it is an executable file, it may be a backdoor tool.

5. In a chat room that supports javascript or html, it is best not to accept the other party's js or html. Because of him, it can be a window bomb or a huge picture.

6. Don't visit some suspicious or unusual websites, because many loopholes in ie allow malicious web editors to read sensitive files on your machine.

Five, common sense of virus prevention

1, try not to download personal site programs.

2. Install genuine antivirus software, such as Kingsoft Internet Security. Norton, Rising, etc.

3. Upgrade the anti-virus software regularly and scan the system for viruses (once a week).