Simple handwritten newspaper for network security painting

Network security painting handwritten newspaper:

Common sense of network security

Working in front of a computer screen for a long time will not only affect people's eyesight, but also change people's brain waves, which will bring adverse effects to the body. Moody, an American scholar, has done a study and thinks that this kind of bad influence is first of all the influence on brain waves, which will form two kinds of harmful brain waves, one is sleep brain waves, and the other is rapid sawtooth brain waves, which will make people lose their judgment and easily make children suffer from dementia.

First of all, when obtaining information online, please pay attention to:

I study in front of the computer screen for no 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. Go outside to breathe fresh air properly.

5. Don't buy online at will.

Second, when students make friends online, please pay special attention to:

1, don't tell your real name and address, phone number, school name, close friends and other information.

2. Don't meet with netizens.

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

Don't refute or answer vulgar netizens, treat them in a silent way. Please learn the secret of self-protection: there are many anonymous friends online, so don't go to an appointment alone. Online personalities are hard to distinguish, so there is nothing wrong with being cautious.