MIT Technology Review: Security experts have been warning for some time that computer networks are not secure from intruders. But in 2013, we learned that the mayhem has become strategic. Governments now write computer viruses. And if they can’t, they can purchase them. A half-dozen boutique R&D houses, like Italy’s Hacking Team, develop computer vulnerabilities and openly market them to government attackers.

Criminals use common computer weaknesses to infect as many machines as possible. But governments assemble large research teams and spend millions patiently pursuing narrow objectives. ­Costin Raiu, who investigates such “advanced persistent threats” as director of research and analysis for anti-virus company Kaspersky Lab, says he logs on to his computer assuming he is not alone. “I operate under the principle that my computer is owned by at least three governments,” he says.

That is a threat mainstream technology companies are grappling with. The U.S. government circumvented Google’s security measures and secretly collected customer data. British spies scooped up millions of webcam images from Yahoo. In December, on Microsoft’s official blog, the company’s top lawyer, Brad Smith, said he had reason to view surreptitious “government snooping” as no different from criminal malware. Microsoft, along with Google and Yahoo, has responded by greatly widening its use of encryption (see “The Year of Encryption”).

“We’re living in a very interesting time, where companies are becoming unwilling pawns in cyberwarfare,” says Menny Barzilay, a former Israeli intelligence officer now working in IT security for the Bank Hapoalim Group, in Tel Aviv. In this new context, nobody can say where the responsibilities of a company may end and those of a nation might begin. Should a commercial bank be expected to expend resources to defend itself when its attacker is a country? “This is not a ‘maybe’ situation. This is happening right now,” says Barzilay. “And this is just the beginning.” [Continue reading…]