Risks on the internet:

Nowdays, internet is very usefull. You can chat with a person who lives thousands of kilometers from you, order a new shoes, look for information, or just having some fun playing a game. But internet has also it´s risks, some of them are:

* SPAM: We refer spam to all messages sent massively, wich ofen contents offerns and marketing promotions, altought the recipient hasn´t asked for it informations.


* PHISING: Involves the creation of a web page very similar to rieliables ones.
Victim introduces its dates and the page wich is not reliable do an incorrect use of the dates.

In this video we can see how does a phising web work.

* MALWARE: Is divided on 3 different groups:

- Virus: A computer virus is a malware program that, when executed, replicates by inserting copies of itself into othercomputer programs, data files, or the boot sector of the hard drive; when this replication succeeds, the affected areas are then said to be "infected"

- Worms: A computer worm is a standalone malware computer program that replicates itself in order to spread to other computers. Often, it uses a social network to spread itself.

- Trojan horses: A Trojan horse, or Trojan, in computing is a generally non-self-replicating type of malware program containing malicious code that, when executed, carries out actions determined by the nature of the Trojan, typically causing loss or theft of data, and possible system harm.