After Chinese hacks, how do we secure the Internet of Things?

Reading about the Chinese hackers hitting the U.S. Chamber of Commerce in Washington, D.C. I was struck by the last two paragraphs, which detailed how the hackers accessed the IP address of a thermostat — as well as the overall tone of resignation around preventing such attacks — and I wondered, how will we secure the web of things? And do we need to give up on the idea of perimeter based security on the web?