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Michael McCaul

Pentagon weighs cybercampaign against Islamic State

Pentagon weighs cybercampaign against Islamic State

The Pentagon is considering increasing the pace and scope of cyberattacks against Islamic State, arguing that more aggressive efforts to disable the extremist group's computers, servers and cellphones could help curtail its appeal and disrupt potential terrorist attacks.

Military hackers and coders at Cyber Command, based at Fort Meade, Md., have developed an array of malware that could be used to sabotage the militants' propaganda and recruitment capabilities, said U.S. officials, who were not authorized to speak publicly on internal discussions.

But closing off the extremists' communications faces resistance from the FBI and intelligence officials. They warn that too...