How much does the US dominance in cyberspace provoke a challenge?

The International Institute for Strategic Studies (IISS) just came out with a report Cyber Capabilities and National Power: A Net Assessment. The countries covered in this report are the US, the United Kingdom, Canada, Australia, France, Israel, China, Russia, Iran, North Korea, India, Indonesia, Malaysia and Vietnam. The IISS has divided the 15 states into three tiers of cyber power. But taking into account the methodology of the report, only in the US merits inclusion into the first tier. But how does America behave in cyberspace? Does it prefer cooperation with allies or perhaps not that much? And what about China and Russia? I had a chance to talk about the report and related topics with Greg Austin who leads the Cyber, Space and Future Conflict Programme at the IISS. Do you want to know what his biggest concern is regarding what the big powers are doing in cyberspace? Listen to our conversation.