At this writing, here's what you see when you visit the website of the Comune di Venezia, the city's official site (click on it for an enlargement):
What it says, in effect is:
Because of an attack perpetrated by unknown persons on the evening of the 17th of December and continuing until the morning of the 19th, the Internet Site of the City of Venice is online only in a minimal version. We apologize to the users. The complete version of the site will be on-line as soon as possible.
Sheesh. That was some hack. Looks like the destruction took place over a couple days. That's very unusual (security anyone?). As a result, the some of the best webcams are inaccessible (I've gotten like 10 emails about that). But that minor inconvenience pales next to the incredible hassle the attack causes to the citizenry ... the site is a real nerve center, very deep and well constructed. What a mindless crime.