We see that terrorist acts are happening in England, then in Germany, then in Switzerland.
I don't really see where the funding is required for modern terrorism. It seems to consist of renting a truck or making some crappy bomb. Even obtaining a firearm from the Balkans or something can't be more than a few hundred or thousand Euros.
The days of IRA or ETA style networks are over. It's individuals unknown to the people motivating them who carry most of it these days.
I presume this is more to do with organised crime and tax evasion, but terrorism makes for an emotive label to put on it.