Human element makes total defense against cyberattacks impossible?

A recent report shows that cyber attackers infiltrated the UN and U.S. government agencies. Juraj Sarinay, from EPFL, sheds light on the world of cybersecurity. Recently, the international press has not stopped publishing articles about the latest wave of cybersecurity breaches. Last week, the computer security giant McAfee published a report detailing 72 compromised security networks , including U.S. governmental agencies and the UN. This past Saturday, the hacker-activist group LulzSec released delicate information hacked from U.S. law-enforcement offices in response to the arrest of their supposed spoke-person. We ask Juraj Sarinay, employed at EPFL's Laboratory for Cryptologic Algorithms and researcher in network security, about these recent cyberattacks. How is it possible that the United Nations did not detect the security breaches in their network, present since 2009? JS: This is not at all surprising.