But Andy Sellars, a First Amendment fellow at the Berkman Center for Internet & Society at Harvard University, doubts we’ll see a similar incident anytime soon.

“To me, it feels much more like a one-off,” Sellars said. “To me, I think it’s an exceptional case under exceptional circumstances.”

The United States might already have gone to cyberwar in 2010 by allegedly using Stuxnet, an attack program that damages computer-controlled industrial machinery. The government of Iran said Stuxnet infected hundreds of centrifuges that were being used to enrich uranium for use in nuclear reactors. Cybersecurity analysts believe Stuxnet was developed jointly by the United States and Israel to cripple the Iranian nuclear program, but neither government has acknowledged any involvement.

via A cyber-warning shot from North Korea – Business – The Boston Globe.