It seems unlikely that similar systems in any country would have remained unpenetrated in the face of that attack.
Just because one entity in a country got hacked, it doesn't mean other entities in the same country can't hack others. At the moment attack seems much easier than defence.
We don't know if the NSA has been penetrated, but given that Google's law enforcement search system was penetrated by unknown parties originating from China it would surprise me if the NSA has remained free from breaches.
It seems unlikely that similar systems in any country would have remained unpenetrated in the face of that attack.
Just because one entity in a country got hacked, it doesn't mean other entities in the same country can't hack others. At the moment attack seems much easier than defence.
We don't know if the NSA has been penetrated, but given that Google's law enforcement search system was penetrated by unknown parties originating from China it would surprise me if the NSA has remained free from breaches.