The country's spy agency - the GCSB - is all too aware of the threat they pose.
"We are seeing an increase in sophisticated actors, and the difference between a state-sponsored actor and a criminal actor is getting less, and less stark," says GCSB Director-General Andrew Hampton.
The GCSB was called in to help with 352 major cyber incidents this year - a third of those were launched by foreign states, like China, Russia and Korea, trying to obtain our state secrets and commercially sensitive information.
That would typically be of most concern for our spies, but not anymore.
"It's not just the state-sponsored actors that we're concerned about, increasingly sophisticated criminal actors seem to have similar capabilities that were previously only available to states," Hampton says.