The Internet was born out of a project developed between 1965 and 1969 by the United States Department of Defense. The aim was to create a secure communications network (ARPA) that could be kept active even if one of its nodes failed. Back then, nobody really thought that in just a few years' time we would be able to access this service from anywhere using our mobile phones, tablets and personal computers. But the developments do not stop here: we already know what the immediate future of the Internet is going to be: the Internet of Things, i.e. the connection of lots of everyday objects to the Internet.
In this rapidly evolving context, there is one constant that is becoming more and more important: the need for security in all its different forms.
In this unit, we will study how the Internet works, we will see how important it is to safeguard our privacy and protect our devices, and we will learn to be digitally responsible, whatever changes the future brings.