Italian police today arrested four people suspected of involvement in cyber attacks on the Vatican and the Italian parliament. According to AFP, the four have been placed under house arrested.

Gazzetta del Sud reports that the four are a 43-year-old man from near Lecce in southern Italy, a 20-year-old from Bologna in central Italy, a 28-year-old from Venice and a 25-year-old from Turin.

"The group carried out a series of attacks against the computer systems of critical infrastructure, institutional sites and important companies," Italian police said, according to Gazzetta del Sud.

"The web is a fundamental environment for the evolution of democracy, of information and for the forming of public opinion but precisely because of this, we have to be careful and intervene against people who use it for illegal ends," junior interior minister Filippo Bubbico told AFP.