We have many chances to deal with private information with Internet's spreading.
If it flows out, it may be used crime.
Let's learn how to prevent its flowing out.

Private information and Internet.

What kind of damage is there when private information is known?

Be careful of information to open the public!

Is it all right that input private information?

When you use the computer that isn't yours, what should you do?

What is a safe password?

Accidents about private information.

Summary of this theme.