美国对伊斯兰国的网络战取得进展

For months now, U.S. government hackers have been setting their sights on the Islamic State terror group, intent on wiping the self-declared caliphate from cyberspace much like U.S. and coalition aircraft have sought to wipe it from the face of the earth. Yet, some of those helping to lead the virtual charge admit it is not yet clear just how effective the cyber efforts have been.

Reinforcing the concerns is a sense, from both military and intelligence officials, that Islamic State may well prove to be as resilient and adaptable in the virtual battle space as it has been on the physical battlefield.

“It’s working well,” U.S. Director of National Intelligence James Clapper told an audience Wednesday during a speech in Washington, adding, “It’s kind of a work in progress.”

“I think we’re learning from this experience, having a real live operation,” he said. “As we progress further we’ll be able to make a more definitive assessment.”

U.S. officials have, so far, been careful in talking publicly about what U.S. cyber operations against Islamic State entail, though Defense Secretary Ash Carter said in late February a top priority would be “to interrupt, disrupt ISIL's command and control.”