Recently, many teen-agers have been harmed because of their lack of self-protection awareness on line. As to solve this problem of online security, the following points should be paid attention to.
First, never use your real name when you are talking with others in the chatting-room while remmembering not to meet any net friend unless you're accompanied by your parents. Second, never tell easily any personal information about you on the internet and don't open any file sent to you from a stranger.
In a word, remember the above points and do as what they say will save us a lot of troubles and prevent us from harm.