Defense in Depth: Hardware Security

On the last Virtualization Security podcast our guest was Robert Rounsavall, CEO of Trapezoid. Trapezoid is looking into how to alleviate supply chain security issues. In essence the security of the hardware. At many a presentation I have asked “do you trust the hardware and many times the answer is that they do another time is they do not. This depends entirely on your thoughts with respect to hardware security. But what can you do about hardware security? What is the worst that can happen if the hardware is infiltrated?