You must not use a password of the type of birth date, numbers in sequence and other simple and trivial passwords. you must use non-trivial passwords, is very important never use the same password for all accounts.

-Stop and think before you click

you have to think before doing "click" because every operation we do, can give information about us.

If you are in a public place and access an open WiFi network, you should know that it could be a trap, however, this does not mean that all open WiFi networks hide dangers, however if you are not sure try to avoid.

avoid making bank transactions, or online purchases and things like this where you need to provide personal information or credit card numbers and data.

-Click on unknown emails:

Never clicking on the links of unknown emails is something you never do on the Internet, usually this mail is sent to you by people who intend to steal your data.

Surfing without an antivirus is certainly the same as the level of security is nothing, you have to think that you could run into dangerous websites and compromise your computer.

never write, for example, "tomorrow I'm going to Rome for three days", this is an example of a phrase that many users use on their profile, but we must remember that this information is not read only by friends but with the whole world, this information is better to keep them for yourself.

-Thing that you do not have to do on the Web is to publish ridiculous illegal photos that after you regret having done so because when you realize you have shared these images it may be too late to go back and make them disappear from view all.

never believe to remain anonymous on the internet, because all the operations you do trace you.

-Use appropriate language on the internet and publish sensible:
photos, because people who could be your professors, employers could get a wrong idea about you