oddly enough, this list of instances did not appear in any newspaper I follow.
After reading about the German Telecom (I live in Germany), I came across an obscure blogpost that Frisco had been attacked, as well. (checks out: main news agencies have reported, too)
And then I googled hacker -francisco -telecom, reduced the hits to "past week" and sorted by date.
That's when the Liechtenstein Bank hack and the Austrian DoS attack came up.
I'm not that special with my hunches and google abilities and I am paranoid enough to think that not listing the events in a general newspaper article was a deliberate omission.
I also think, all around the globe IT departments now work overtime to make triple sure they have done all they could.
The Frisco attack makes it obvious enough that even not-for-real-profit-organizations and infrastructure providers are at risk.
As to "a defence force can be hacked " - that is not what happened. It was a several hours long DoS, denial of service attack on webservers of both Austrian government branches.
DoS, that's what you call it when an idiot floods automated requests at, for example, a webserver. Eventually, the server's operating system gets choked and the server goes down.
But a website, i.e. webserver, is not crucial in these 2 particular targets. It's not naive to be convinced that the truly crucial entry points of their networks are far better protected than a citizen's information site.
So don't worry, at least not about this
Austria's finger pointed towards Turkey, by the way.