The simulation also included officials from throughout the U.S. government and from allied partners to emphasize stronger coordination.

Privacy advocates, technologists and businesses including Apple have criticized the Australian bill and similar proposals elsewhere, saying such a plan would introduce portals for government abuse and malicious hackers alike.

Malware used by the United States in offensive cyber-operations plays “nice” when compared to other nation-state malware, according to FireEye CEO Kevin Mandia.

The U.S. House of Representatives is looking to ramp up a cyberthreat information-sharing program with the parliaments of allies Australia, Canada, New Zealand, and Britain, according to House CISO Randy Vickers.

GCHQ head Jeremy Fleming revealed that the U.K. has conducted a proactive cyber campaign against ISIS, touting the notion of using offensive cyberattacks to counter violent extremism.

"I will raise the need to address ongoing challenges posed by terrorists and criminals using encryption," says George Brandis, Australia's attorney general.