Cyber-espionage
Cyber espionage is becoming the weapon of choice for many national governments – no matter how tight-lipped they may be about any involvement in such activities to undermine their enemies.
As Nesbitt said, "the next world war will be fought on a keyboard," and we should expect cyber espionage attacks to increase in frequency in 2015, McAfee's "2015 Threat Predictions" report warned.
"Long-term players will become stealthier information gatherers, while newcomers will look for ways to steal money and disrupt their adversaries," McAfee Labs report states, predicting that more small nation states and terror groups will use cyber warfare.